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                                IMAX CORPORATION
                                  EXHIBIT 10.15
                               AMENDING AGREEMENT

This Amendment to Employment Agreement dated and effective as of April 4, 2001
(the "Amending Agreement") is made between:

IMAX CORPORATION, a corporation incorporated under the laws of Canada
(hereinafter referred to as the "Company"),

And

ROBERT D. LISTER (the "Executive")

WHEREAS, the Company wishes to enter into this Amending Agreement to amend and
extend the Employment Agreement dated as of May 17, 1999, between Imax Ltd, the
Company and Executive (the "Agreement"), whereunder the Executive provides
services to the Company, and the Executive wishes to so continue such
engagement, as hereinafter set forth;

AND WHEREAS, on January 1, 2001 Imax Ltd. assigned all of its rights and
obligations pursuant to the Agreement to the Company, and the Executive has
consented to such assignment;

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 amended by the addition of the
following language:

"Effective April 2, 2001 the Executive shall serve as the Executive Vice
President, Legal Affairs, General Counsel and Corporate Secretary."

2.       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 the 17th day of May, 1999 (the "Commencement Date") and
shall terminate on the earlier of (i) December 31, 2003, or (ii) the termination
of the Employee's employment pursuant to this Agreement. The period commencing
as of the Commencement Date and ending on December 31, 2003 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."

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

"Section 2.1      Base Salary. Effective May 17, 2001, the Executive's Base
Salary shall be US$ 240,000. The co-CEO's (or their successor(s)) and the
Executive shall revisit the Executive's Base Salary on January 1, 2002 and
January 1, 2003."

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4.       Section 4.1.1 of the Agreement shall be amended by deleting the first
         and second paragraphs and replacing as follows:

Section 4.1.1     General. Subject to the provisions of Sections
4.1.2, 4.1.3 and 6, if prior to the expiration of the Employment Term, the
Executive's employment is terminated by the Company Without Cause, the Company
shall pay the Termination Payment then due to be paid within 30 days of the date
of termination and shall continue to pay the Executive the Base Salary,
automobile allowance and Executive's target bonus (the "Target Bonus") (on a
prorated basis) pursuant to the terms of the management bonus plan referred to
in Section 2.2, for the remainder of the Employment Term (such period being
referred to hereinafter as the "Severance Period"), either at such intervals as
the same would have been paid had the Executive remained in the active service
of the Company including the applicable portion of the Target Bonus, or, at the
option of the Company, by immediate payment to the Employee of the remaining
Base Salary, automobile allowance and Target Bonus which would be payable during
the Severance Period; provided however that the Severance Period shall be a
minimum of twelve (12) months in duration. Upon such termination, the Executive
shall also be entitled to continue to receive his employment benefits at the
Company's expense (to the extent paid for by the Company as at the date of
termination) and subject to the consent of the applicable insurers. The
Executive agrees that the Company may deduct from any payment of Base Salary to
be made during the Severance Period the benefit plan contributions which are to
be made by the Executive during the Severance Period in accordance with the
terms of all benefit plans for the minimum period prescribed by law. The
Executive shall have no further right to receive any other compensation after
such termination except as are necessary under the terms of the Executive
benefit plans or programs of the Company or as required by applicable law.
Payment of Base Salary, automobile allowance and Target Bonus and the
continuation of the aforementioned Executive benefits during the Severance
Period as outlined above shall be deemed to include all termination and
severance pay to which the Executive is entitled pursuant to applicable statute
law and common law. The date of termination of employment Without Cause shall be
the date specified in a written notice of termination to the Executive and does
not include the Severance Period.

Except as amended herein, all other terms of the Agreement and Amending
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 4th day of April, 2001.

                                        IMAX CORPORATION

                                        By: "Richard L. Gelfond"
                                            -----------------------------------
                                            Name: Richard L. Gelfond
                                            Title: Co-Chairman
                                                   & Co- Chief Executive Officer

SIGNED, SEALED AND DELIVERED            EXECUTIVE:
in the presence of:

"Yasmin Best"                               "Robert D. Lister"
----------------------------                -----------------------------------
Witness                                     Robert D. Lister