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                                                                   EXHIBIT 10.15

                                IMAX CORPORATION

                            SECOND AMENDING AGREEMENT

This Amendment to the Employment Agreement and Amending Agreement dated and
effective as of October 28, 2004 (the "Second Amending Agreement") is made
between:

IMAX CORPORATION, a corporation incorporated under the laws of Canada
(hereinafter referred to as the "Company"; the Company and its subsidiaries and
affiliates collectively referred to as "Imax"),

And

GREG FOSTER (the "Executive")

WHEREAS, the Company wishes to enter into this Second Amending Agreement to
amend and extend the Employment Agreement dated as of March 9, 2001 between the
Company and the Executive, as amended by the Amending Agreement dated as of
August 8, 2002 between the Company and Executive, (collectively, the
"Agreement"), whereunder the Executive provides services to the Company, and the
Executive wishes to so continue such engagement, as hereinafter set forth;

NOW, THEREFORE, in consideration of good and valuable consideration, the receipt
and sufficiency of which is hereby acknowledged, the parties hereto agree as
follows:

1.   Section 1.1 of the Agreement shall be modified by the addition of the
     following language:

"Effective as of September 1, 2004, the Executive shall serve as the Chairman
and President, Filmed Entertainment of the Company."

2.   Section 1.2 of the Agreement shall be modified by the addition of the
     following language:

"The Executive's responsibilities shall include film distribution, in addition
to film development, film production and film marketing. The Executive shall be
a spokesperson for film announcements that are made by the Company and the
Company shall issue a press release announcing the promotion of the Executive to
Chairman and President, Filmed Entertainment. There shall be no more senior
executive in the Filmed Entertainment department and the Executive shall report
only to the co-CEOs of the Company on all of his activities."

3.   Section 1.3 of the Agreement shall be deleted and replaced with the
     following:

 "Section 1.3 Term of Employment. The Employee's employment under this Agreement
commenced on March 19, 2001 (the "Commencement Date") and shall terminate on the
earlier of (i) June 30, 2006, or (ii) the termination of the Employee's
employment pursuant to this Agreement. The period commencing as of the
Commencement Date and ending on June 30, 2006 or such later date to which the
term of the Employee's employment under this Agreement shall have been extended
is hereinafter referred to as the "Employment Term"."

4.   Section 1.4 of the Agreement shall be amended by the insertion of the words
     "from Los Angeles" after the word "relocation" in the second line.

5.   Section 2.1 of the Agreement shall be deleted and replaced with the
     following:

"Section 2.1 Base Salary. Effective November 10, 2004, the Executive's Base
Salary shall be US$ 450,000. Effective January 1, 2006, the Executive's Base
Salary shall be US$ 475,000."

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6.   Section 2.2 of the Agreement shall be modified by the addition of the
     following language.

"The Executive's Minimum Bonus in respect of each of the years ending December
31 2004, and the year ending December 31, 2005, shall be no less than US$
200,000. For each year thereafter, the Executive's Bonus shall be subject to the
discretion of the co-CEOs, provided however that in the event that the Agreement
is not renewed, the Executive's Minimum Bonus in respect of the year ending
December 31, 2006 shall be no less than US$ 100,000."

7.   Section 2.4.1 of the Agreement shall be amended by the addition of the
     following:

"Effective as soon as practicable after the signing of the Second Amending
Agreement, the Executive shall be granted non-qualified options to purchase
100,000 shares of common stock of the Company. The options shall vest as to 50%
on the second anniversary date of the grant and 50% on the third anniversary
date of the grant. Effective as soon as practicable after the signing of the
Second Amending Agreement, the Executive shall be granted options to purchase
50,000 shares of common stock of the Company, which shall vest subject to
certain performance criteria to be agreed between the Executive and the
co-CEO's."

8.   Section 6 of the Agreement shall be amended by the insertion of the word
     "not" after the word "shall" and before the word "be" in the first line.

Except as amended herein, all terms of the Agreement shall remain in full force,
unamended.

IN WITNESS WHEREOF, the Company and the Executive have duly executed and
delivered this Amending Agreement on this 28th day of October, 2004

                                          IMAX CORPORATION

                                          By:         "Mary C. Sullivan"
                                          --------------------------------------
                                          Name: Mary C. Sullivan
                                          Title: Senior Vice President,
                                          Human Resources & Administration

                                          By:           "G. Mary Ruby"
                                          --------------------------------------
                                          Name: G. Mary Ruby
                                          Title: Senior Vice President,
                                          Legal Affairs & Deputy General Counsel

                                           EXECUTIVE:

                                                  "Greg Foster"
                                          --------------------------------------
                                           Greg Foster<PAGE>
                                                                   Exhibit 10.20

                                IMAX CORPORATION

                       SUMMARY OF DIRECTORS' COMPENSATION

In respect of each year during which an eligible director serves as a director
of the Corporation, he shall receive:

     1.   $20,000 (Cdn.) per year payable quarterly in arrears provided that an
          eligible director may elect, at the commencement of his term of
          office, or as soon as practicable thereafter, to receive such number
          of options to purchase Common Shares of the Corporation under the
          terms of the IMAX Stock Option Plan (the "Plan") as shall be
          calculated using the Black Scholes Option Valuation Model, at an
          exercise price equal to the Fair Market Value of the shares, as
          defined in the Plan. The options will be granted annually and will
          vest in equal amounts quarterly, in arrears;

     2.   $1,500 (Cdn.) for every Board meeting attended in person together with
          $750 (Cdn.) for every telephone Board meeting in which he
          participates;

     3.   $750 (Cdn.) for any Committee of the Board meetings in which the
          Eligible Director participates, whether in person or by telephone;

     4.   at the commencement of each year, or as soon as practicable
          thereafter, a grant of options to purchase 8,000 Common Shares of the
          Corporation under the terms of the IMAX Stock Option Plan at an
          exercise price equal to the Fair Market Value of the shares, as
          defined in the Plan, on the date on which the Eligible Director joins
          IMAX's Board; and

     5.   reimbursement of any expenses incurred by the Eligible Director in
          connection with participation in Board or Committee meetings.

                                                                    June 7, 2001EXHIBIT 10.1

                                AMENDMENT NO. 1

                                       TO

                              EMPLOYMENT AGREEMENT

               THIS AMENDMENT NO. 1 to the Employment Agreement between DOBI
Medical International, Inc. (the "Company") and Phillip C. Thomas ("Executive"),
dated December 9, 2003 is made as of the 10th day of March, 2005, between the
Company and Executive (the "Amendment").

               WHEREAS, the Company and Executive agree that it is in the
interests of both parties that Executive continue to serve the Company pursuant
to Executive's Employment Agreement; and

               WHEREAS, Executive has met certain milestones that resulted in
Executive's entitlement to a bonus pursuant to the Employment Agreement, yet
Executive has agreed to waive this obligation on behalf of the Company as set
forth in this Amendment; and

               WHEREAS, Executive has agreed to waive certain payments due him
upon a Change of Control as that term is defined in the Employment Agreement.

               NOW, THEREFORE, for good and valuable consideration, the receipt
and sufficiency of which is hereby acknowledged, the parties hereto hereby agree
as follows:

         1.    AMENDMENTS TO THE EMPLOYMENT AGREEMENT. The Employment Agreement
is hereby amended as follows in compliance with Section 12 of the Employment
Agreement:

               (a) Section 4.1 is amended to delete the requirement that
Executive be provided with an annual salary adjustment for the year 2005.

               (b) Section 4.2(b) is waived.

               (c) Section 4.2(d) is amended to delete any obligation to pay a
bonus to Executive for the year 2005. It remains in full force and effect with
respect to its other terms.

               (d) A new Section, 4.2(e) is added as follows: upon approval of
this Amendment by the Board of Directors, the Company shall grant to Executive
stock options to purchase 75,000 shares of Company common stock at the fair
market value of such shares as of the closing price on the date of grant. Such
options shall vest pursuant to the terms established in Section 4.3 of the
Employment Agreement, which vesting shall commence on the day of the grant.

               (e) Section 6.4(a)(iv), relating to the lump sum payment as a
result of a Change in Control, is deleted. It remains in full force and effect
with respect to its other terms.

         2.    Payment to Executive. Executive has agreed to the amendments
herein in exchange for a payment of $125,000 gross (less applicable payroll
taxes and withholdings) which is due and subject to the completion of the
current planned PIPE transaction expected to close within the next 60 days.
Payment shall be made within five (5) business days of

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the completion of such transaction. The failure to make the payment set forth in
this paragraph 2 shall constitute a material breach of the Employment Agreement.

         3.     No Other Amendments. Except as amended hereby, the Employment
Agreement shall be and remains in full force and effect in accordance with its
original terms.

         4.     Counterparts; Telefacsimile Signatures. This Agreement may be
executed in multiple counterparts and by telefacsimile signature, each of which
shall be deemed an original, and all of which taken together shall constitute
one instrument.

         5.     This Amendment No. 1 is subject to approval by the Board of
Directors of Company.

         IN WITNESS WHEREOF, the parties have executed this Amendment No. 1 as
of the date first above written.

                                 ON BEHALF OF THE MEMBERS OF THE BOARD OF
                                 DIRECTORS OF DOBI MEDICAL INTERNATIONAL, INC.

                                 By: /s/Robert Machinist
                                     -------------------------------------------
                                 Name:   Robert Machinist
                                 Title:  Chairman of the Board

                                 EXECUTIVE

                                 /s/Phillip C. Thomas
                                 -----------------------------------------------
                                 Phillip C. Thomas

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