Document:

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                                IMAX CORPORATION

                                  EXHIBIT 4.11

                          FIFTH SUPPLEMENTAL INDENTURE

     Fifth Supplemental Indenture (this "Fifth Supplemental Indenture"), dated
as of June 19, 2006 among IMAX Corporation, a corporation incorporated under the
federal laws of Canada (the "Company"), the Guarantors named in the Indenture
referred to below (the "Existing Guarantors"), the First Supplemental Guarantors
named in the Supplemental Indenture referred to below, the Second Supplemental
Guarantor named in the Second Supplemental Indenture referred to below, the
Fourth Supplemental Guarantors named in the Fourth Supplemental Indenture
referred to below, Acorn Rain Productions Ltd. (the "Guaranteeing Subsidiary")
and U.S. Bank National Association, as trustee under the Indenture referred to
below (the "Trustee").

                                   WITNESSETH

     WHEREAS, the Company and the Existing Guarantors have heretofore executed
and delivered to the Trustee an indenture (the "Indenture"), dated as of
December 4, 2003, as amended by the First Supplemental Indenture dated as of
April 1, 2004 among the Company, the Existing Guarantors, 3D Sea II Ltd. and
Taurus-Littrow Productions Inc. (the "First Supplemental Guarantors") and the
Trustee (the "First Supplemental Indenture"), as further amended by the Second
Supplemental Indenture dated as of July 14, 2004 among the Company, the Existing
Guarantors, the First Supplemental Guarantors and Big Engine Films Inc. (the
"Second Supplemental Guarantor") and the Trustee (the "Second Supplemental
Indenture"), as further amended by the Third Supplemental Indenture dated as of
February 2, 2005 among the Company, the Existing Guarantors, the First
Supplemental Guarantors, the Second Supplemental Guarantor and Automation
Productions Ltd. (the "Third Supplemental Guarantor") and the Trustee (the
"Third Supplemental Indenture"), and as further amended by the Fourth
Supplemental Indenture dated as of April 10, 2006 among the Company, the
Existing Guarantors, the First Supplemental Guarantors, the Second Supplemental
Guarantor, Conversion Films Ltd., Feathered Films Ltd. and Great Ant Productions
Ltd. (the "Fourth Supplemental Guarantors") and the Trustee (the "Fourth
Supplemental Indenture") providing for the issuance of 9 5/8% Senior Notes due
2010 (the "Securities");

     WHEREAS, IMAX Sanddle Animation, one of the Existing Guarantors, was
dissolved on February 8, 2005, and the Third Supplemental Guarantor was
dissolved on December 31, 2005 and each are therefore no longer Guarantors.

     WHEREAS, the Indenture provides that under certain circumstances each
Guaranteeing Subsidiary shall execute and deliver to the Trustee a supplemental
indenture pursuant to which any newly-acquired or created Guarantor shall
unconditionally guarantee all of the Company's obligations under the Securities
and the Indenture on the terms and conditions set forth herein (the "Subsidiary
Guarantee"); and

     WHEREAS, pursuant to Section 901 of the Indenture, the Trustee is
authorized to execute and deliver this Fifth Supplemental Indenture.

<PAGE>

     NOW THEREFORE, in consideration of the foregoing and for other good and
valuable consideration, the receipt of which is hereby acknowledged, the
Guaranteeing Subsidiary and the Trustee mutually covenant and agree for the
equal and ratable benefit of the Holders of the Securities as follows:

     1. Capitalized Terms. Capitalized terms used herein without definition
shall have the meanings assigned to them in the Indenture.

     2. Agreement to Guarantee. The Guaranteeing Subsidiary irrevocably and
unconditionally guarantees the Guarantee Obligations, which include (i) the due
and punctual payment of the principal of, premium, if any, and interest and
Special Interest, if any, on the Securities, whether at maturity, by
acceleration, redemption, upon a Change of Control Offer, upon an Asset Sale
Offer or otherwise, the due and punctual payment of interest on the overdue
principal and premium, if any, and (to the extent permitted by law) interest on
any interest on the Securities, and payment of expenses, and the due and
punctual performance of all other obligations of the Company, to the Holders or
the Trustee all in accordance with the terms set forth in Article XIII of the
Indenture, and (ii) in case of any extension of time of payment or renewal of
any Securities or any such other obligations, that the same will be promptly
paid in full when due or performed in accordance with the terms of the extension
or renewal, whether at stated maturity, by acceleration, redemption, upon a
Change of Control Offer, upon an Asset Sale Offer or otherwise.

     The obligations of the Guaranteeing Subsidiary to the Holders and to the
Trustee pursuant to this Subsidiary Guarantee and the Indenture are expressly
set forth in Article XIII of the Indenture and reference is hereby made to such
Indenture for the precise terms of this Subsidiary Guarantee.

     No past, present or future director, officer, partner, manager, employee,
incorporator or stockholder (direct or indirect) of the Guaranteeing Subsidiary
(or any such successor entity), as such, shall have any liability for any
obligations of such Guaranteeing Subsidiary under this Subsidiary Guarantee or
the Indenture or for any claim based on, in respect of, or by reason of, such
obligations or their creation, except in their capacity as an obligor or
Guarantor of the Securities in accordance with the Indenture.

     This is a continuing Guarantee and shall remain in full force and effect
and shall be binding upon the Guaranteeing Subsidiary and its successors and
assigns until full and final payment of all of the Company's obligations under
the Securities and Indenture or until released in accordance with the Indenture
and shall inure to the benefit of the successors and assigns of the Trustee and
the Holders, and, in the event of any transfer or assignment of rights by any
Holder or the Trustee, the rights and privileges herein conferred upon that
party shall automatically extend to and be vested in such transferee or
assignee, all subject to the terms and conditions hereof. This is a Guarantee of
payment and not of collectibility.

     The obligations of the Guaranteeing Subsidiary under its Subsidiary
Guarantee shall be limited to the extent necessary to insure that it does not
constitute a fraudulent conveyance under applicable law.

     THE TERMS OF ARTICLE XIII OF THE INDENTURE ARE INCORPORATED HEREIN BY
REFERENCE.

                                        2

<PAGE>

     3. NEW YORK LAW TO GOVERN. THE LAWS OF THE STATE OF NEW YORK SHALL GOVERN
AND BE USED TO CONSTRUE THIS FIFTH SUPPLEMENTAL INDENTURE.

     4. Counterparts. The parties may sign any number of copies of this Fifth
Supplemental Indenture. Each signed copy shall be an original, but all of them
together represent the same agreement.

     5. Effect of Headings. The Section headings herein are for convenience only
and shall not affect the construction hereof.

                                        3

<PAGE>

     IN WITNESS WHEREOF, the parties hereto have caused this Fifth Supplemental
Indenture to be duly executed and attested, all as of the date first above
written.

                                        IMAX Corporation

                                        By "G. Mary Ruby"
                                           -------------------------------------
                                        Name: G. Mary Ruby
                                        Title: Sr. Vice President, Legal
                                               Affairs, Deputy General Counsel
                                               and Corporate Secretary

                                        By "Edward MacNeil"
                                           -------------------------------------
                                        Name: Edward MacNeil
                                        Title: Vice President Finance, Tax and
                                               Special Projects

                                        EXISTING GUARANTORS:

                                        David Keighley Productions 70MM Inc.
                                        IMAX II U.S.A. Inc.
                                        IMAX Chicago Theatre LLC
                                           By its Managing Member
                                           IMAX Theatre Holding
                                           (California I) Co.
                                        IMAX Minnesota Holding Co.
                                        IMAX Rhode Island Limited Partnership
                                           By its General Partner
                                           IMAX Providence General Partner Co.
                                        IMAX Scribe Inc.
                                        IMAX Space Ltd.
                                        IMAX Theatre Holding Co.
                                        IMAX Theatre Holdings (OEI) Inc.
                                        IMAX Theatre Management Company
                                        IMAX Theatre Services Ltd.
                                        IMAX U.S.A. Inc.
                                        Miami Theatre LLC
                                           By its Managing Member
                                           IMAX Theatre Holding
                                           (California I) Co.
                                        Nyack Theatre LLC
                                           By its Managing Member
                                           IMAX Theatre Holding (Nyack I) Co.
                                        Parker Pictures Ltd.
                                        Ridefilm Corporation
                                        Sacramento Theatre LLC
                                           By its Managing Member
                                           IMAX Theatre Holding
                                           (California I) Co.
                                        Sonics Associates, Inc.
                                        Starboard Theatres Ltd.

<PAGE>

                                        Tantus Films Ltd.
                                        1329507 Ontario Inc.
                                        924689 Ontario Inc.
                                        IMAX (Titanica) Ltd.
                                        IMAX (Titanic) Inc.
                                        IMAX Music Ltd.
                                        IMAX Film Holding Co.
                                        IMAX Indianapolis LLC
                                        IMAX Providence General Partner Co.
                                        IMAX Providence Limited Partner Co.
                                        IMAX Theatre Holding (California I) Co.
                                        IMAX Theatre Holding (California II) Co.
                                        IMAX Theatre Holding (Nyack I) Co.
                                        IMAX Theatre Holding (Nyack II) Co.
                                        IMAX Theatre Management
                                        (Scottsdale), Inc.
                                        Strategic Sponsorship Corporation
                                        Tantus II Films Ltd.
                                        RPM Pictures Ltd.

                                        By "G. Mary Ruby"
                                           -------------------------------------
                                        Name: G. Mary Ruby
                                        Title: Secretary

                                        By "Edward MacNeil"
                                           -------------------------------------
                                        Name: Edward MacNeil
                                        Title: Vice President

                                        FIRST SUPPLEMENTAL GUARANTORS:

                                        Taurus-Littrow Productions Inc.
                                        3D Sea II Ltd.

                                        By "G. Mary Ruby"
                                           -------------------------------------
                                        Name: G. Mary Ruby
                                        Title: Secretary

                                        By "Edward MacNeil"
                                           -------------------------------------
                                        Name: Edward MacNeil
                                        Title: Vice President

<PAGE>

                                        SECOND SUPPLEMENTAL GUARANTOR:

                                        Big Engine Films Inc.

                                        By "G. Mary Ruby"
                                           -------------------------------------
                                        Name: G. Mary Ruby
                                        Title: Secretary

                                        By "Edward MacNeil"
                                           -------------------------------------
                                        Name: Edward MacNeil
                                        Title: Vice President

                                        FOURTH SUPPLEMENTAL GUARANTORS:

                                        Conversion Films Ltd.
                                        Feathered Films Ltd.
                                        Great Ant Productions Ltd.

                                        By "G. Mary Ruby"
                                           -------------------------------------
                                        Name: G. Mary Ruby
                                        Title: Secretary

                                        By "Edward MacNeil"
                                           -------------------------------------
                                        Name: Edward MacNeil
                                        Title: Vice President

<PAGE>

                                        GUARANTEEING SUBSIDIARY:

                                        ACORN RAIN PRODUCTIONS LTD.

                                        By "G. Mary Ruby"
                                           -------------------------------------
                                        Name: G. Mary Ruby
                                        Title: Secretary

                                        By "Edward MacNeil"
                                           -------------------------------------
                                        Name: Edward MacNeil
                                        Title: Vice President

<PAGE>

                                        TRUSTEE:

                                        U.S. Bank National Association,
                                           As Trustee

                                        By: "Raymond S. Haverstock"
                                            ------------------------------------
                                        Name: Raymond S. Haverstock
                                        Title: Vice President<PAGE>

                                IMAX CORPORATION

                                  EXHIBIT 10.27

THIS SECOND AMENDMENT TO THE LOAN AGREEMENT is made as of and with effect from
the 16th day of May, 2006.

BETWEEN:

                                IMAX CORPORATION

                                  ("BORROWER")

                                     - and -

                  WACHOVIA CAPITAL FINANCE CORPORATION (CANADA)

               (FORMERLY, CONGRESS FINANCIAL CORPORATION (CANADA))

                                   ("LENDER")

     WHEREAS Borrower and Lender entered into a loan agreement dated February 6,
2004 as amended by a first amendment to the loan agreement made as of June 30,
2005 (collectively, the "LOAN AGREEMENT"), pursuant to which certain credit
facilities were established in favour of Borrower;

     AND WHEREAS the parties hereto wish to extend the term of the Loan
Agreement to October 31, 2009, and amend certain other terms and conditions of
the Loan Agreement;

     NOW THEREFORE THIS AGREEMENT WITNESSES THAT in consideration of the
covenants and agreements contained herein and for other good and valuable
consideration, the parties hereto agree to amend the Loan Agreement as provided
herein:

SECTION 1 GENERAL

          In this Second Amendment to the Loan Agreement, unless otherwise
defined or the context otherwise requires, all capitalized terms shall have the
respective meanings specified in the Loan Agreement.

SECTION 2 TO BE READ WITH LOAN AGREEMENT

          This Second Amendment to the Loan Agreement is an amendment to the
Loan Agreement and amends, restates and replaces in its entirety the Second
Amendment to the Loan Agreement made as of and executed on May 16, 2006. Unless
the context of this Second Amendment to the Loan Agreement otherwise requires,
the Loan Agreement and this Second Amendment to the Loan Agreement shall be read
together and shall have effect as if the provisions of the Loan Agreement and
this Second Amendment to the Loan Agreement were contained in one agreement. The
term "AGREEMENT" when used in the Loan Agreement means the Loan Agreement as
amended by this Second Amendment to the Loan Agreement, together with all
amendments, supplements, restatements and replacements thereto or therefor from
time to time.

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                                      -2-

SECTION 3 NO NOVATIONS

          Nothing in this Second Amendment to the Loan Agreement, nor in the
Loan Agreement when read together with this Second Amendment to the Loan
Agreement, shall constitute a novation, payment, re-advance or reduction or
termination in respect of any Obligations of Borrower.

SECTION 4 AMENDMENTS TO THE LOAN AGREEMENT

     (a)  Schedule 1.11 to the Loan Agreement (FORM OF BORROWING BASE
          CERTIFICATE), is deleted in its entirety and replaced with Schedule
          1.11 attached hereto.

     (b)  A new Schedule 1.1(A) is added to the Loan Agreement called "CONTRACTS
          IN BACKLOG/FINISHED GOODS INVENTORY" in the form attached to the
          Disclosure Letter.

     (c)  A new Schedule 1.1(B) is added to the Loan Agreement called "LONG TERM
          RECEIVABLES CONTRACTS", in the form attached to the Disclosure Letter.

     (d)  Schedule 8.4 to the Loan Agreement (EXISTING LIENS), is deleted in its
          entirety and replaced with Schedule 8.4 attached hereto.

     (e)  A new Schedule 8.9(B) is added to the Loan Agreement called
          "RESTRICTIONS ON ASSIGNABILITY WITHIN CONTRACTS IN BACKLOG AND LONG
          TERM RECEIVABLES CONTRACTS" in the form attached to the Disclosure
          Letter.

     (f)  Schedule 9.9 to the Loan Agreement (EXISTING INDEBTEDNESS), is deleted
          in its entirety and replaced with Schedule 9.9 attached hereto.

     (g)  Schedule 9.10 to the Loan Agreement (EXISTING LOANS, ADVANCES AND
          GUARANTEES), is deleted in its entirety and replaced with Schedule
          9.10 attached hereto.

     (h)  Section 1 of the Loan Agreement (DEFINITIONS), is amended by adding
          the following definitions (in their respective alphabetical order):

          (A)  ""AMENDMENT EFFECTIVE DATE" shall mean the date upon which all of
               the conditions contained in the renewal and amending agreement
               dated May 16, 2006, between Borrower and Lender, have been
               satisfied in full (in the sole discretion of Lender) or have been
               waived in writing (in whole or in part) by Lender, in its sole
               discretion;

          (B)  "APPRAISAL" shall have the meaning attributed to it in Section
               2.1(a)(v);

          (C)  "ASSIGNMENT OF CONTRACTS IN BACKLOG AND LONG TERM RECEIVABLES
               CONTRACTS" shall mean the Assignment of Contracts in Backlog and
               Long Term Receivables Contracts between Borrower, as assignor,
               and Lender, as assignee, dated as of May 16, 2006, as the same
               now exists or may hereafter be amended, modified, supplemented,
               extended, renewed, restated or replaced;

<PAGE>

                                      -3-

          (D)  "CONTRACTS IN BACKLOG" shall mean, collectively, contracts
               designated by the Borrower internally as "contracts in backlog"
               as listed on Schedule 1.1(A), as may be amended, updated and/or
               restated from time to time in accordance with the requirements
               set out in Section 7.1(a) hereof;

          (E)  "CONTRACTS AND LEASES" shall mean, collectively, any one or all
               of the Capital Leases, the Operating Leases, the Contracts in
               Backlog and the Long Term Receivables Contracts;

          (F)  "DISCLOSURE LETTER" means the Disclosure Letter of even date
               herewith executed by the Borrower and the Lender to which are
               attached Schedule 1.1(A), Schedule 1.1(B) and Schedule 8.9(B).

          (G)  "ELIGIBLE CONTRACTS IN BACKLOG" shall mean Contracts in Backlog,
               from time to time, which are and continue to be acceptable to
               Lender based on the general criteria set forth below which
               Lender, in good faith, may revise from time to time. In general,
               a Contract in Backlog shall be an Eligible Contract in Backlog
               if:

               (i)  it is with a Client deemed creditworthy at all times by
                    Lender, as determined by Lender in good faith;

               (ii) it is with a Client that has not asserted a bona fide
                    counterclaim, defence or dispute (other than as to a de
                    minimus amount) under the applicable Contract in Backlog and
                    if so, the value of such Contract in Backlog Inventory shall
                    be reduced by the amount of such counterclaim, defense or
                    dispute;

               (iii) it is with a Client that does not have, and does not engage
                    in transactions which may give rise to, any right of set-off
                    against the Contract in Backlog Inventory; provided that the
                    existence of any such right of set-off shall not by itself
                    cause such Contract in Backlog Inventory to cease to
                    continue to be Eligible Contract in Backlog Inventory but
                    its appraised value, for purposes of Section 2.1 hereof,
                    will be reduced by Lender by an amount determined by Lender
                    in good faith;

               (iv) there are no facts, events or occurrences which would impair
                    the validity, enforceability or collectability of the
                    Contract in Backlog or materially reduce the amount payable
                    or delay payment thereunder, including without limitation,
                    any event of default or event which would, with notice or
                    the passage of time, constitute an event of default under
                    the Contract in Backlog;

               (v)  it is subject to the first priority, valid and perfected
                    security interest of Lender and is not subject to any prior
                    ranking liens or other liens except Permitted Encumbrances;

<PAGE>

                                      -4-

               (vi) it is with a Client which is not itself, nor any officer or
                    employee thereof, an officer, employee or agent of or
                    affiliated with Borrower, directly or indirectly, by virtue
                    of family membership, ownership, control, management or
                    otherwise;

               (vii) there are no proceedings or actions which are threatened or
                    pending against the Client which could reasonably be
                    expected to result in any material adverse change in such
                    Client's financial condition;

               (viii) unless otherwise permitted by Lender, it is not with a
                    Client which, together with its affiliates, constitutes,
                    without duplication, more than ten (10%) percent of all
                    otherwise Eligible Contracts, Leases and Inventory (but the
                    portion of the Finished Goods Inventory not in excess of
                    such applicable percentage continues to be Eligible Finished
                    Goods Inventory); and

               (ix) notwithstanding that there are restrictions on assignability
                    in respect of such Contracts in Backlog.

               Any Contract in Backlog Inventory which is not considered to be
               Eligible Contract in Backlog Inventory in accordance with the
               foregoing requirements, is nevertheless considered to form part
               of the Collateral;

          (H)  "ELIGIBLE CONTRACTS, LEASES AND INVENTORY" shall mean,
               collectively, any one of or all of the Eligible Capital Leases,
               Eligible Operating Leases, Eligible Finished Goods Inventory and
               Eligible Long Term Receivables Contracts;

          (I)  "ELIGIBLE FINISHED GOODS INVENTORY" means Finished Goods
               Inventory that has been assigned by the Borrower to Eligible
               Contracts in Backlog;

          (J)  "ELIGIBLE LONG TERM RECEIVABLES CONTRACTS" shall mean those
               contracts of the Borrower, from time to time, which are and
               continue to be acceptable to Lender based on the general criteria
               set forth below which Lender, in good faith, may revise from time
               to time. In general, a Long Term Receivables Contract shall be an
               Eligible Long Term Receivables Contract if:

               (i)  it is with a Client deemed creditworthy at all times by
                    Lender, as determined by Lender in good faith;

               (ii) it is with a Client that has not asserted a bona fide
                    counterclaim, defence or dispute (other than as to a de
                    minimus amount) under the applicable Long Term Receivables
                    Contract and if so, the value of such Long Term Receivables
                    Contract shall be reduced by the amount of such
                    counterclaim, defense or dispute;

               (iii) it is with a Client that does not have, and does not engage
                    in transactions which may give rise to, any right of set-off
                    against the Long Term Receivables Contract; provided that
                    the existence of any

<PAGE>

                                      -5-

                    such right of set-off shall not by itself cause such Long
                    Term Receivables Contract to cease to continue to be an
                    Eligible Long Term Receivables Contract but its appraised
                    value, for purposes of Section 2.1 hereof, will be reduced
                    by Lender by an amount determined by Lender in good faith;

               (iv) there are no facts, events or occurrences which would impair
                    the validity, enforceability or collectability of the Long
                    Term Receivables Contract or materially reduce the amount
                    payable or delay payment thereunder, including without
                    limitation, any event of default or event which would, with
                    notice or the passage of time, constitute an event of
                    default under the Long Term Receivables Contract;

               (v)  it is subject to the first priority, valid and perfected
                    security interest of Lender and is not subject to any prior
                    ranking liens or other liens except Permitted Encumbrances;

               (vi) it is with a Client which is not itself, nor any officer or
                    employee thereof, an officer, employee or agent of or
                    affiliated with Borrower, directly or indirectly, by virtue
                    of family membership, ownership, control, management or
                    otherwise;

               (vii) there are no proceedings or actions which are threatened or
                    pending against the Client which could reasonably be
                    expected to result in any material adverse change in such
                    Client's financial condition;

               (viii) unless otherwise permitted by Lender, it is not with a
                    Client which, together with its affiliates, constitutes more
                    than ten (10%) percent of all otherwise Eligible Contracts,
                    Leases and Inventory (but the portion of the Long Term
                    Receivables Contracts not in excess of such applicable
                    percentage continue to be Eligible Long Term Receivables
                    Contracts); and

               (ix) notwithstanding that there are restrictions on the
                    assignability in respect of such Long Term Receivables
                    Contracts.

               Any Long Term Receivables Contract, which is not considered to be
               an Eligible Long Term Receivables Contract in accordance with the
               foregoing requirements, is nevertheless considered to form part
               of the Collateral;

          (K)  "ELIGIBLE REAL PROPERTY" shall mean the Real Property and any
               other real property of Borrower that has been deemed to be
               acceptable as Eligible Real Property by Lender;

          (L)  "FINISHED GOODS INVENTORY" means the finished goods Inventory of
               the Borrower that has been designated by the Borrower as a
               Contract in Backlog;

<PAGE>

                                      -6-

          (M)  "FINISHED GOODS INVENTORY LENDING FORMULA" shall have the meaning
               set forth in Section 2.1(a) hereof;

          (N)  "LONG TERM RECEIVABLES CONTRACTS" shall mean, collectively, all
               of the contracts listed on Schedule 1.1(B), as may be amended,
               updated and/or restated from time to time in accordance with the
               requirements set out in Section 7.1(a) hereof, each of which are
               contracts that relate to the sale of theatre equipment by the
               Borrower;

          (O)  "LONG TERM RECEIVABLES CONTRACTS LENDING FORMULA" shall have the
               meaning set forth in Section 2.1(a) hereof;

          (P)  "ORDERLY LIQUIDATION VALUE" shall mean the amount, expressed in
               terms of currency in US Dollars, it is estimated would be
               realized from any orderly liquidation of the Finished Goods
               Inventory and Long Term Receivables Contracts, as applicable, net
               of the amount of deductions for all commissions, taxes and other
               Liquidation Expenses, which, as of the Amendment Effective Date,
               is the orderly liquidation value attributed to Finished Goods
               Inventory and Long Term Receivables Contracts in the Hilco
               Appraisal and at any future date will be the estimated amount
               similarly calculated as of the date of calculation attributed to
               the Finished Goods Inventory and Long Term Receivables Contracts
               by the Appraiser;

          (Q)  "REAL PROPERTY" means the property of Borrower municipally known
               as 2525 Speakman Drive, Mississauga, Ontario L5K 1B1; and

          (R)  "REAL PROPERTY LENDING FORMULA" shall have the meaning set forth
               in Section 2.1(a)(v) hereof."

     (i)  Section 1.1 of the Loan Agreement, being the definition of "ACCOUNTS",
          is hereby amended by deleting the reference to "Capital Leases and/or
          Operating Leases" in the third line thereof and replacing it with a
          reference to "Contracts and Leases".

     (j)  Section 1.19 of the Loan Agreement, being the definition of "CASH
          DOMINION EVENT", is hereby amended by deleting the reference to
          "$7,500,000" in the second line thereof and replacing it with a
          reference to "$5,000,000".

     (k)  Section 1.23 of the Loan Agreement, being the definition of "CLIENT",
          is hereby deleted in its entirety and replaced with the following:

          ""CLIENT" shall mean any Person, other than Borrower, who is now or
          hereafter a party to a Capital Lease, Operating Lease, Contract in
          Backlog and/or a Long Term Receivables Contract, as applicable, and
          "Clients" means all such Persons."

     (l)  Section 1.24 of the Loan Agreement, being the definition of
          "COLLATERAL", is hereby amended by inserting ", collectively, the Real
          Property and" immediately before the words "Collateral as such term"
          in the first line thereof.

<PAGE>

                                      -7-

     (m)  Each of Section 1.28 and 1.29 of the Loan Agreement, being the
          definition of "ELIGIBLE CAPITAL LEASES" and "ELIGIBLE OPERATING
          LEASES", respectively, is hereby amended by deleting subparagraph (g)
          thereof.

     (n)  Section 1.36 of the Loan Agreement, being the definition of "FINANCING
          AGREEMENTS", is hereby amended by inserting "Assignment of Contracts
          in Backlog and Long Term Receivables Contracts," following the words
          "Assignment of Capital Leases and Operating Leases," in the second
          line thereof.

     (o)  Section 1.38 of the Loan Agreement, being the definition of "GENERAL
          SECURITY AGREEMENT", is hereby amended by inserting "as the same now
          exists or may hereafter be amended, modified, supplemented, extended,
          renewed, restated or replaced" immediately following "the Obligations"
          in the third line thereof.

     (p)  Section 1.40 of the Loan Agreement, being the definition of "HILCO
          APPRAISAL", is hereby deleted in its entirety and replaced with the
          following:

          ""HILCO APPRAISAL" shall mean the most recently dated appraisal
          conducted by the Appraiser that has been delivered to Lender, as may
          be amended, updated or supplemented from time to time."

     (q)  Subsection (b) of Section 1.42 of the Loan Agreement, being the
          definition of "INTEREST RATE", is hereby amended as follows:

          (A)  Subsection (i) is hereby amended by deleting the words "a rate of
               one quarter of one (0.25%) percent per annum in excess of the
               Applicable Prime Rate or a rate of two (2%)" in the first and
               second lines thereof and replacing them with "the Applicable
               Prime Rate or a rate of one and one quarter of one (1.25%)";

          (B)  Subsection (ii) is hereby amended by deleting the words "a rate
               of one half of one (0.50%) percent per annum in excess of the
               Applicable Prime Rate or a rate of two and one quarter (2.25%)"
               in the first and second lines thereof and replacing them with "a
               rate of one quarter of one (0.25%) percent per annum in excess of
               the Applicable Prime Rate or a rate of one and one half of one
               (1.5%)";

          (C)  Subsection (iii) is hereby amended by deleting the words "a rate
               of three quarters of one (0.75%) percent per annum in excess of
               the Applicable Prime Rate or a rate of two and one half (2.5%)"
               in the first and second lines thereof and replacing them with "a
               rate of one half of one (0.50%) percent per annum in excess of
               the Applicable Prime Rate or a rate of two (2%)".

     (r)  Section 1.47 of the Loan Agreement, being the definition of "LENDING
          FORMULAS", is hereby deleted in its entirety and replaced with the
          following:

          ""LENDING FORMULAS" shall mean, collectively, the Operating Leases
          Lending Formula, the Capital Leases Lending Formula, the Finished
          Goods Inventory

<PAGE>

                                      -8-

          Lending Formula, the Long Term Receivables Lending Formula and the
          Real Property Lending Formula."

     (s)  Section 1.54 of the Loan Agreement, being the definition of "MAXIMUM
          CREDIT" is hereby amended by deleting the reference to "$20,000,000"
          therein and replacing it with a reference to "$40,000,000".

     (t)  Section 1.71 of the Loan Agreement, being the definition of "RENEWAL
          DATE", is deleted in its entirety.

     (u)  Section 2.1 of the Loan Agreement (REVOLVING LOANS), is hereby amended
          as follows:

          (A)  Subparagraph (a)(ii)(A) is hereby amended by deleting the
               reference to "thirty-four (34%)" in the first line thereof and
               replacing it with "forty-nine (49%)";

          (B)  Subparagraph (a)(ii)(B) is hereby amended by deleting the "." at
               the end of this Subsection and replacing it with ", plus";

          (C)  the following new Paragraph (a)(iii) is added:

               "(iii) the lesser of:

                    (A)  thirty-one (31%) percent of the aggregate net book
                         value of Eligible Finished Goods Inventory; or

                    (B)  eighty-five (85%) percent of the appraised value of
                         such Eligible Finished Goods Inventory expressed as a
                         percentage of cost value, net of estimated Liquidation
                         Expenses, with appraisals conducted on an Orderly
                         Liquidation Value basis at the expense of Borrower by
                         the Appraiser (the "FINISHED GOODS INVENTORY LENDING
                         FORMULA"), plus";

          (D)  the following new Paragraph (a)(iv) is added:

               "(iv) the lesser of:

                    (A)  forty (40%) percent of the aggregate net book value of
                         Eligible Long Term Receivables Contracts; or

                    (B)  eighty-five (85%) percent of the appraised value of
                         such Eligible Long Term Receivables Contracts expressed
                         as a percentage of cost value, net of estimated
                         Liquidation Expenses, with appraisals conducted on an
                         Orderly Liquidation Value basis at the expense of
                         Borrower by the Appraiser (the "LONG TERM RECEIVABLES
                         CONTRACTS LENDING FORMULA"), plus";

<PAGE>

                                      -9-

          (E)  the following new Paragraph (a)(v) is added:

               "(v) the lesser of:

                    (A)  $10,000,000; or

                    (B)  Y-[(Y / 120) x N]

                         (the "REAL PROPERTY LENDING FORMULA").

                         For purposes of this Subsection 2.1(a)(v) "Y" means FMV
                         multiplied by 65% and "N" means the number of months
                         (or any part thereof) elapsed since the most recent of
                         (i) the Amendment Effective Date; and (ii) the date of
                         the most recent Re-appraisal (as defined below) and
                         "FMV" means the fair market value of the Real Property
                         as indicated in the most recent of (i) the appraisal
                         (the "APPRAISAL") of Royal LePage Advisors Inc. dated
                         July 19, 2005; and (ii) the most recent Re-appraisal.
                         The Borrower will be entitled, not more than once in
                         any twelve month period, to have the Real Property
                         Lending Formula recalculated based on a new appraisal
                         (a "RE-APPRAISAL") of the Real Property, provided any
                         such appraisal shall be in form and scope that is in
                         accordance with typical commercial practice for the
                         determination of fair market value of real property at
                         the time and in the circumstances and conducted by an
                         appraiser satisfactory to the Lender, acting
                         reasonably;"

          (F)  Subsection (b) is hereby deleted in its entirety and replaced
               with the following:

               "(b) Lender may, in its discretion, from time to time reduce or
                    otherwise revise the Lending Formulas to the extent that
                    Lender, in good faith, determines that: (i) the general
                    creditworthiness of the Clients has declined; or (ii) the
                    liquidation value of any of the Eligible Contracts and
                    Leases or Eligible Real Property, or any category thereof,
                    has decreased; (iii) the nature and quality of the Eligible
                    Contracts and Leases and/or the Eligible Real Property has
                    deteriorated; or (iv) the fair market value of the Eligible
                    Real Property has decreased. In determining whether to
                    reduce or otherwise revise the Lending Formulas, Lender may
                    consider events, conditions, contingencies or risks which
                    are also considered in determining Eligible Contracts and
                    Leases or the Eligible Real Property or in establishing
                    Availability Reserves."

     (v)  Section 2.2 of the Loan Agreement (LETTER OF CREDIT ACCOMMODATIONS),
          is amended as follows:

<PAGE>

                                      -10-

          (A)  Subsection (d) is hereby amended by deleting the reference to
               "$12,000,000" and replacing it with "$20,000,000"; and

          (B)  Subsection (e) is hereby amended by deleting the words "or
               non-renewal" in the last line thereof.

     (w)  Section 6.3(c) of the Loan Agreement (COLLECTION OF ACCOUNTS), is
          hereby amended by deleting the words "or non-renewal" in the last line
          thereof.

     (x)  Section 6.4 of the Loan Agreement (PAYMENTS), is hereby amended by
          deleting the words "or non-renewal" in the last line thereof.

     (y)  The following new Section 7.5(B) is added to the Loan Agreement:

          "7.5(B) REAL PROPERTY COVENANTS

          With respect to the Real Property: (a) Borrower shall, at its expense,
          at any time or times as Lender may request on or after an Event of
          Default has occurred and is continuing, deliver or cause to be
          delivered to Lender written reports or appraisals as to the Real
          Property in form, scope and methodology acceptable to Lender and by an
          appraiser acceptable to Lender; (b) Borrower shall keep the Real
          Property in good order, repair and marketable condition (ordinary wear
          and tear excepted); (c) Borrower shall use the Real Property in
          accordance with applicable requirements of any insurance and in
          conformity with all applicable laws, unless the failure to conform
          would not reasonably be expected singly or when aggregated with any
          other nonconformity to have a materially adverse effect on its
          business or undertaking or its ability to fulfil its obligations
          hereunder; (d) the Real Property is and shall be used in Borrower's
          business and not for personal, family, household or farming use; (e)
          Borrower shall defend its title to the Real Property against any
          adverse claims unless the failure to defend would not reasonably be
          expected, singly or when aggregated with any other failure to defend,
          to have a materially adverse effect on its business or undertaking or
          its ability to fulfil its obligations hereunder; (f) Borrower shall
          not surrender, quit claim or grant any easement, right-of-way or other
          right or servitude benefiting or burdening the Real Property without
          the prior consent of Lender, such consent not to be unreasonably
          withheld; and (g) Borrower assumes all responsibility and liability
          arising from the use and occupation of the Real Property."

     (z)  Section 7.6(a)(i) of the Loan Agreement (POWER OF ATTORNEY), is hereby
          amended by deleting the reference to "Capital Leases, the Operating
          Leases" and replacing it with a reference to "Contracts and Leases".

     (aa) Section 8.7 of the Loan Agreement (COMPLIANCE WITH OTHER AGREEMENTS
          AND APPLICABLE LAWS), is hereby amended by deleting the reference to
          "Capital Leases and the Operating Leases" and replacing it with a
          reference to "Contracts and Leases".

     (bb) Section 8.9 of the Loan Agreement (ACCURACY AND COMPLETENESS OF
          INFORMATION), is hereby amended by deleting the second sentence
          thereof in its entirety and replacing it with the following:

<PAGE>

                                      -11-

          "Borrower represents and warrants that none of the Contracts and
          Leases include contractual provisions restricting the assignability
          thereof to Lender or to an assignee of Lender upon exercise of any of
          the Financing Agreements, with the exception of those restrictive
          provisions set out on Schedules 8.9 and 8.9(B) hereof."

     (cc) Section 9.3(e) of the Loan Agreement (COMPLIANCE WITH LAWS,
          REGULATIONS, ETC.), is hereby amended by deleting the words "or
          non-renewal" in the last line thereof.

     (dd) Section 9.4 of the Loan Agreement (PAYMENT OF TAXES AND CLAIMS), is
          hereby amended by deleting the words "or non-renewal" in the last line
          thereof.

     (ee) Section 9.21 of the Loan Agreement (COSTS AND EXPENSES), is hereby
          amended by deleting the reference to "$750" in Subsection 9.21(g) and
          replacing it with a reference to "$800".

     (ff) Section 10.2 of the Loan Agreement (REMEDIES), is hereby amended as
          follows:

          (A)  Subsection (b)(xi) is hereby amended by deleting the reference to
               "Eligible Capital Leases and Eligible Operating Leases" and
               replacing it with a reference to "Eligible Contracts and Leases";
               and

          (B)  Subsection (c)(iii) is hereby amended by deleting the reference
               to "Capital Leases and Operating Leases" and replacing it with a
               reference to "Contracts and Leases".

     (gg) Section 11.5 of the Loan Agreement (INDEMNIFICATION), is hereby
          amended by deleting the words "or non-renewal" in the last line
          thereof.

     (hh) Section 12.1(a) of the Loan Agreement (TERM), is hereby amended by
          deleting the following:

          "the earlier of: (i) the date which is three (3) years from the date
          hereof (the "RENEWAL DATE"), and from year to year thereafter, unless
          sooner terminated pursuant to the terms hereof; provided, that, each
          of Lender and Borrower may, provided mutually agreed, extend the
          original Renewal Date to the date three hundred sixty-five (365) days
          from the Renewal Date by giving the other party, as applicable, notice
          at least sixty (60) days prior to the Renewal Date and in the event
          such option to extend the original Renewal Date to the date three
          hundred sixty-five (365) days from the original Renewal Date is
          exercised by Lender or Borrower, Borrower shall pay to Lender, upon
          the date such option is exercised, a fully earned additional
          commitment fee in the amount of $50,000.00. Lender or Borrower may
          terminate the Financing Agreements effective on the Renewal Date or on
          the anniversary of the Renewal Date in any year by giving to the other
          party at least sixty (60) days prior written notice; provided, that,
          all Financing Agreements must be terminated simultaneously. Upon the
          effective date of termination or non-renewal",

          and replacing it with the following:

<PAGE>

                                      -12-

          "October 31, 2009; provided that the Borrower may request that the
          Lender extend the term to October 31, 2010 by giving the Lender notice
          in writing at least sixty (60) days prior to October 31, 2009. If the
          Lender agrees to such extension by notice in writing to the Borrower
          on or before October 31, 2009, the term will thereby be extended to
          October 31, 2010."

     (ii) Section 12.1(c) of the Loan Agreement (TERM) is hereby amended by
          deleting the following in its entirety:

<TABLE>
<CAPTION>
          "Amount                                    Period
          -------                                    ------
<S>                            <C>
(i)  1.5% of Maximum Credit    -    From the date hereof to and including the
                                    first anniversary of the date hereof.

(ii) 1.0% of Maximum Credit    -    After the first anniversary of the date
                                    hereof to and including the second
                                    anniversary of the date hereof.

(iii) 0.5% of Maximum Credit   -    After the second anniversary of the date
                                    hereof to and including the third
                                    anniversary of the date hereof and if the
                                    term of this Agreement is extended for an
                                    additional year, then to and including the
                                    end of the then current term."
</TABLE>

and replacing it with the following:

<TABLE>
<CAPTION>
          "Amount                                    Period
          -------                                    ------
<S>                            <C>
(i)  1.5% of Maximum Credit    -    From the date hereof to and including
                                    October 30, 2006.

(ii) 1.0% of Maximum Credit    -    From October 31, 2006 to and including
                                    October 30, 2007.

(iii) 0.5% of Maximum Credit   -    From October 31, 2007 to and including
                                    October 30, 2009 and if the term of this
                                    Agreement is extended in accordance with the
                                    terms hereof then to and including the end
                                    of the then current term."
</TABLE>

SECTION 5 REPRESENTATIONS AND WARRANTIES

          In order to induce Lender to enter into this Second Amendment to the
Loan Agreement, Borrower represents and warrants to Lender the following, which
representations and warranties shall survive the execution and delivery hereof:

     (a)  all necessary action, corporate or otherwise, has been taken to
          authorize the execution, delivery and performance of this Second
          Amendment to the Loan Agreement by Borrower;

     (b)  Borrower has duly executed and delivered this Second Amendment to the
          Loan Agreement;

<PAGE>

                                      -13-

     (c)  this Second Amendment to the Loan Agreement is a legal, valid and
          binding obligation of Borrower, enforceable against it by Lender in
          accordance with its terms, except to the extent that the
          enforceability thereof may be limited by applicable bankruptcy,
          insolvency, moratorium, reorganization and other laws of general
          application limiting the enforcement of creditor's rights generally
          and the fact that the courts may deny the granting or enforcement of
          equitable remedies;

     (d)  the representations and warranties set forth in Section 8 of the Loan
          Agreement, as amended by this Second Amendment to the Loan Agreement,
          continue to be true and correct as of the date hereof; and

     (e)  no Event of Default, or event which, with the passage of time or
          giving of notice or both, would constitute an Event of Default,
          exists.

SECTION 6 RENEWAL FEE

          Borrower shall pay to Lender a one-time renewal fee in the amount of
USD $150,000, which shall be fully earned as of and payable upon the execution
of this Second Amendment to the Loan Agreement.

SECTION 7 EXPENSES

          Borrower shall pay to Lender on demand all reasonable fees and
expenses, including, without limitation, legal fees, incurred by Lender in
connection with the preparation, negotiation, completion, execution, delivery
and review of this Second Amendment to the Loan Agreement and all other
documents, registrations and instruments arising therefrom and/or executed in
connection therewith.

SECTION 8 CONDITIONS PRECEDENT

          This Second Amendment to the Loan Agreement shall not be effective
until the Amendment Effective Date and until each of the following conditions
has been satisfied, or has been waived in writing (in whole or in part) by
Lender in its sole discretion. The execution of this Second Amendment to the
Loan Agreement by Lender shall constitute evidence of the satisfaction and/or
waiver of each of the following conditions by Lender:

     (a)  Lender has received, in form and substance satisfactory to Lender, an
          original copy of each of the following documents:

          (i)  this Second Amendment to the Loan Agreement duly executed and
               delivered by Borrower;

          (ii) a certificate of compliance issued by Industry Canada in respect
               of Borrower;

          (iii) an officer's certificate or certificates issued by an authorized
               officer of Borrower relating to Borrower and, inter alia, matters
               of corporate status, incumbency of officers and corporate power
               and authority;

<PAGE>

                                      -14-

          (iv) a certified copy of a resolution of the board of directors of
               Borrower authorizing the execution, delivery and performance of
               this Second Amendment to the Loan Agreement; and

          (v)  an updated Borrowing Base Certificate;

     (b)  Borrower has paid all fees and disbursements incurred by Lender in
          accordance with Section 7 hereof and the renewal fee in the amount of
          USD $150,000 payable to Lender in accordance with Section 8 hereof;

     (c)  Lender shall have received evidence from Borrower (including, without
          limitation, any subordinations or releases of any other liens in the
          Collateral required by Lender), in form and substance satisfactory to
          Lender, that Lender has valid perfected and first priority liens upon
          the Collateral, subject only to the liens permitted in the Financing
          Agreements;

     (d)  Lender shall have received, in form and substance satisfactory to
          Lender, an opinion letter of Borrower's counsel, McCarthy Tetrault
          LLP, with respect to this Second Amendment to the Loan Agreement;

     (e)  all consents, waiver, acknowledgements and other agreements from third
          persons which Lender may deem necessary or desirable in order to give
          effect to the provisions or purposes of this Agreement and the other
          Financing Agreements; and

     (f)  Lender and its counsel, acting reasonably, must be satisfied with the
          form and content of all of the Contracts in Backlog and the Long Term
          Receivables Contracts of Borrower and must be reasonably satisfied
          that the benefits received by Borrower under each of the Contracts in
          Backlog and the Long Term Receivables Contracts are assignable to
          Lender and any future assignees without the consent of any of the
          Clients.

SECTION 9 CONTINUANCE OF THE LOAN AGREEMENT AND SECURITY

          The Loan Agreement, as changed, altered, amended or modified by this
Second Amendment to the Loan Agreement, shall be and continue in full force and
effect and is hereby confirmed and the rights and obligations of all parties
thereunder shall not be affected or prejudiced in any manner except as
specifically provided for herein. It is agreed and confirmed that after giving
effect to this Second Amendment to the Loan Agreement, all security delivered by
Borrower and/or any Obligor secures the payment of all of the Obligations
including, without limitation, the obligations arising under the Loan Agreement,
as amended by the terms of this Second Amendment to the Loan Agreement.

SECTION 10 COUNTERPARTS & FACSIMILE

          This Second Amendment to the Loan Agreement may be executed in any
number of counterparts, by original or facsimile signature, each of which shall
be deemed an original and all of such counterparts taken together shall be
deemed to constitute one and the same instrument.

<PAGE>

                                      -15-

SECTION 11 GOVERNING LAW

          The validity, interpretation and enforcement of this Second Amendment
to the Loan Agreement and any dispute arising out of the relationship between
the parties hereto, whether in contract, tort, equity or otherwise, shall be
governed by the laws of the Province of Ontario and the federal laws of Canada
applicable therein.

          IN WITNESS WHEREOF the parties hereto have executed this Second
Amendment to the Loan Agreement as of and with effect from the day and year
first above written.

LENDER                                  BORROWER

WACHOVIA CAPITAL FINANCE CORPORATION    IMAX CORPORATION
(CANADA)

By: "Carmela Massari"                   By: "G Mary Ruby"       "Edward MacNeil"
    ---------------------------------       ------------------------------------
Title: First Vice President             Title: Sr VP            VP Finance,
                                               Legal Affairs    Special Projects

Address:                                Address of Chief Executive Office:
141 Adelaide Street West, Suite 1500    110 East 59th Street
Toronto, Ontario, M5H 3L5               New York, New York, 10022
Fax: (416) 364-6068                     Fax: (212) 371-7584

Each of IMAX U.S.A. INC., IMAX II U.S.A. INC. and 1329507 ONTARIO INC.
(collectively, the "GUARANTORS" and each a "GUARANTOR") hereby acknowledges,
consents and confirms as follows:

For good and valuable consideration (the receipt and sufficiency of which is
hereby acknowledged by the Guarantors), each of the Guarantors hereby
acknowledges, confirms and consents that:

(a)  it has reviewed and understands the terms of this Second Amendment to the
     Loan Agreement and consents to the amendment of the Loan Agreement as
     contemplated herein;

(b)  its liability under the guarantee to which it is a party dated February 6,
     2004 (each hereinafter referred to as a "GUARANTEE"), is affected by this
     Second Amendment to the Loan Agreement;

(c)  the "GUARANTEED OBLIGATIONS" (as respectively defined in each Guarantee, as
     applicable) shall extend to and include all of the obligations of the
     Borrower under the Loan Agreement as amended by this Second Amendment to
     the Loan Agreement;

(d)  each of the Guarantees shall continue in full force and effect, enforceable
     against each of the Guarantors, as applicable, in accordance with its
     terms; and

<PAGE>

                                      -16-

(e)  each of the security documents or instruments creating a security interest,
     assignment, hypothec, lien, pledge or other charge granted by the
     Guarantors to Lender together with all amendments, supplements,
     restatements or replacements thereto or therefore from time to time remains
     in full force and effect as at the date hereof, in respect of each of the
     Guarantors' obligations under the Loan Agreement, as amended by this Second
     Amendment to the Loan Agreement.

DATED as of and with effect from the 16th day of May, 2006.

IMAX U.S.A. INC.                        IMAX II U.S.A. INC.

Per: "G Mary Ruby"                      Per: "G Mary Ruby"
     --------------------------------        -----------------------------------
Name: G. Mary Ruby                      Name: G. Mary Ruby
Title: Secretary                        Title: Secretary

Per: "Edward MacNeil"                   Per: "Edward MacNeil"
     --------------------------------        -----------------------------------
Name: Edward MacNeil                    Name: Edward MacNeil
Title: Vice President                   Title: Vice President

1329507 ONTARIO INC.

Per: "G Mary Ruby"
     --------------------------------
Name: G. Mary Ruby
Title: Secretary

Per: "Edward MacNeil"
     --------------------------------
Name: Edward MacNeil
Title: Vice President
<PAGE>

                                  SCHEDULE 1.11
                       FORM OF BORROWING BASE CERTIFICATE

TO:  WACHOVIA CAPITAL FINANCE CORPORATION (CANADA) (formerly, CONGRESS FINANCIAL
     CORPORATION (CANADA))(the "LENDER")

RE:  Loan Agreement dated February 6, 2004, between the Lender and Imax
     Corporation (the "BORROWER"), as amended, modified, supplemented, extended,
     renewed, restated or replaced from time to time (the "LOAN AGREEMENT")

     All capitalized terms used but not otherwise defined herein shall have the
meanings ascribed thereto in the Loan Agreement.

     The undersigned ____________________ being the ____________________ and
____________________ being the ____________________ of the Borrower, each hereby
certifies, as of the date hereof, in that capacity and without personal
liability, as follows:

1.   This certificate is being delivered to the Lender by the Borrower pursuant
     to the terms of the Loan Agreement.

2.   I have made, or caused to be made, such examinations or investigations as
     are, in my belief, necessary to enable me to make the statements or give
     the opinions contained or expressed in this certificate.

3.   The availability of Eligible Operating Leases is $- (the "ELIGIBLE
     OPERATING LEASES AVAILABILITY"), and has been determined as follows:

<TABLE>
<S>                              <C>
Value of Operating Leases as      $-
set our in Exhibit 1 hereto

Less the Value of Operating      -$-
Leases set out on Exhibit 1
which are not Eligible
Operating Leases

Value of Eligible Operating       $-
Leases

Multiplied by the advance rate    x 85%
on Eligible Operating Leases

Eligible Operating Leases         $-
Availability
</TABLE>

<PAGE>

                                       -2-

4.   The availability of Eligible Capital Leases is $- (the "ELIGIBLE CAPITAL
     LEASES AVAILABILITY"), and has been determined as follows:

<TABLE>
<S>                              <C>
Value of Capital Leases as set    $-
out in Exhibit 2 hereto

Less the Value of Capital        -$-
Leases set out on Exhibit 2
which are not Eligible Capital
Leases

Value of Eligible Capital         $-
Leases

Multiplied by the advance rate    [X 49% OR X 85%][NTD: DETERMINE IN ACCORDANCE
on Eligible Capital Leases        WITH SECTION 2.1]

Eligible Capital Leases           $-
Availability
</TABLE>

5.   The availability of Eligible Finished Goods Inventory is $- (the "ELIGIBLE
     FINISHED GOODS INVENTORY"), and has been determined as follows:

<TABLE>
<S>                              <C>
Value of Finished Goods           $-
Inventory as set out in
Exhibit 3 hereto

Less the Value of Finished       -$-
Goods Inventory set out on
Exhibit 3 which are not
Eligible Finished Goods
Inventory

Value of Eligible Finished        $-
Goods Inventory

Multiplied by the advance rate    [X 31% OR X 85%][NTD: DETERMINE IN ACCORDANCE
on Eligible Finished Goods        WITH SECTION 2.1]
Inventory

Eligible Finished Goods           $-
Inventory Availability
</TABLE>

<PAGE>

                                       -3-

6.   The availability of Eligible Long Term Receivables Contracts is $- (the
     "ELIGIBLE LONG TERM RECEIVABLES CONTRACTS AVAILABILITY"), and has been
     determined as follows:

<TABLE>
<S>                              <C>
Value of Long Term Receivables    $-
Contracts as set out in
Exhibit 4 hereto

Less the Value of Long Term      -$-
Receivables Contracts set out
on Exhibit 4 which are not
Eligible Long Term Receivables
Contracts

Value of Eligible Long Term       $-
Receivables Contracts

Multiplied by the advance rate    [X 40% OR X 85%][NTD: DETERMINE IN ACCORDANCE
on Long Term Receivables          WITH SECTION 2.1]
Contracts

Eligible Long Term Receivables    $-
Contracts Availability
</TABLE>

7.   The availability of Eligible Real Property is $- (the "ELIGIBLE REAL
     PROPERTY AVAILABILITY"), and has been determined as follows:

<TABLE>
<S>                              <C>
Fair Market Value of Real         $- ("FMV")
Property based on most recent
of Appraisal or Re-Appraisal

FMV multiplied by 65%             [-] ("Y")

Number of months (or part         [-] ("N")
thereof) elapsed since the
most recent of (i) May 16,
2006, and (ii) the date of the
most recent Re-Appraisal

Application of Real Property      [-] ("Formula Amount")
Lending Formula of Y-[(Y/120)
x N]

Eligible Real Property            $-
Availability being the lesser
of $10,000,000 and the Formula
Amount
</TABLE>

8.   Attached hereto as Exhibit 5 is an analysis of residual values for the
     Operating Leases.

9.   Attached hereto as Exhibit 6 is an analysis of the Capital Leases reserves.

<PAGE>

                                       -4-

10.  Based on the Lending Formulas, the aggregate amount of Revolving Loans and
     Letter of Credit Accommodations available to the Borrower ("AVAILABLE
     REVOLVING LOANS AND LETTER OF CREDIT ACCOMMODATIONS") is:

<TABLE>
<S>                              <C>
Eligible Operating Leases         $-
Availability per Section 3
above

Plus Eligible Capital Leases     +$-
Availability per Section 4
above

Plus Eligible Backlog            +$-
Contracts Availability per
Section 5 above

Plus Eligible Long Term          +$-
Receivables Contracts
Availability per Section 6
above

Plus Eligible Real Estate        +$-
Availability per Section 7
above

Less the Availability Reserves   -$-
set out in Exhibit 7 hereto

Total                             $-
</TABLE>

11.  The aggregate amount of Revolving Loans and Letter of Credit Accommodations
     outstanding is $- ("OUTSTANDING LOANS"), and has been determined as
     follows:

<TABLE>
<S>                              <C>
Principal amount of               $-
outstanding Revolving Loans
and Letter of Credit
Accommodations indicated in
paragraph 11 of the Borrowing
Base Certificate delivered
prior to this Certificate (the
"PRIOR CERTIFICATE")

Less the net cash collections    -$-
made by the Lender since the
date of the Prior Certificate,
as set out in Exhibit 8
hereto.

Plus the principal amount of     +$-
Revolving Loans made by Lender
and other charges payable to
Lender (including adjustments
or returned cheques and other
remittances, fees, interest,
costs and expenses) made
and/or incurred since the date
of the Prior Certificate, as
set out in Exhibit 9 hereto.
</TABLE>

<PAGE>

                                       -5-

<TABLE>
<S>                              <C>
Plus current undrawn amount of   +$-
outstanding Letter of Credit
Accommodations, as set out in
Exhibit 10 hereto.

Aggregate amount of               $-
Outstanding Loans
</TABLE>

12.  The Excess Availability is $-, and has been determined as follows:

<TABLE>
<S>                              <C>
The Lessor of: (a) Available      $-
Loans; (b) Maximum Credit; and
(c) Trailing Cash Collections
as set out in Exhibit 11
hereto

Less Outstanding Loans           -$-

Less the aggregate amount of     -$-
due but unpaid tax obligations
(as set out in Exhibit 12
hereto) and trade payables
which are unpaid 90 days after
the original invoice date for
them (as set out in Exhibit 13
hereto)

Excess Availability               $-
</TABLE>

13.  No Event of Default exists or has occurred and is continuing.

14.  The representations and warranties of the Borrower contained in the Loan
     Agreement are true and correct with the same effect as though such
     representations and warranties had been made or given at and as of the date
     hereof.

15.  Nothing in this Certificate will limit the right of the Lender to establish
     or revise criteria of eligibility or Availability Reserves or otherwise
     limit, impair, or affect in any manner whatsoever the rights of Lender
     under the Loan Agreement.

16.  In the event of any conflict or inconsistency between the determination of
     the Lender of the amount of Available Loans (as made in accordance with the
     terms of the Loan Agreement) and the determination by the Borrower of the
     amount of Available Loans, the determination of the Lender shall govern.

Dated this     day of             ,      .
           ---        ------------  -----

                                        Name: -
                                              ----------------------------------
                                        Title: -
                                               ---------------------------------

                                        Name: -
                                              ----------------------------------
                                        Title: -
                                               ---------------------------------

<PAGE>

                                       -6-

                                LIST OF EXHIBITS

Exhibit 1  - Operating Leases Schedule

Exhibit 2  - Capital Leases Schedule

Exhibit 3  - Backlog Contracts Schedule

Exhibit 4  - Long Term Receivables Contracts Schedule

Exhibit 5  - Analysis of Residual Values

Exhibit 6  - Analysis of Capital Leases Reserves

Exhibit 7  - Availability Reserves Schedule

Exhibit 8  - Listing of cash collections received by Borrower and remitted or
             to be remitted to Lender since last certificate

Exhibit 9  - Listing of dollar amount of loans made by Lender and other
             charges payable (including adjustments for returned cheques and
             other remittances, fees, interest, costs and expenses) to Lender
             since last Certificate.

Exhibit 10 - Listing of dollar amount of current undrawn amounts of
             outstanding Letter of Credits Accommodations.

Exhibit 11 - Trailing Cash Collections

Exhibit 12 - Tax Obligations

Exhibit 13 - Accounts Payable Aging

<PAGE>

                                  SCHEDULE 8.4

                                 EXISTING LIENS

<PAGE>

                                  SCHEDULE 9.9

                              EXISTING INDEBTEDNESS

1. 9 5/8% Senior Notes due December 1, 2010, as at January 30, 2004 amount
outstanding is $160,000,000;

2. Loan Agreement dated February 6, 2004 between Congress Financial Corporation
(Canada) as amended by a first amendment to the loan agreement made as of June
30, 2005 pursuant to which certain credit facilities were established in favour
of the Borrower.

<PAGE>

                                  SCHEDULE 9.10

                     EXISTING LOANS, ADVANCES AND GUARANTEES

None.

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