Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
GELFOND RICHARD L
  2. Issuer Name and Ticker or Trading Symbol
IMAX CORP [IMAX]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Chief Executive Officer
(Last)
(First)
(Middle)
110 EAST 59TH STREET, SUITE 2100
3. Date of Earliest Transaction (Month/Day/Year)
08/23/2010
(Street)

NEW YORK, NY 10022
4. If Amendment, Date Original Filed(Month/Day/Year)
6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)
4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)
6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)
7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
common shares 08/23/2010   S   10,000 (1) D $ 13.99 306,650 D  
common shares 08/23/2010   M   30,000 (2) A $ 6.86 336,650 D  
common shares 08/23/2010   D   30,000 (2) D $ 13.85 306,650 D  
common shares 08/24/2010   S   10,000 (1) D $ 13.35 296,650 D  
common shares 08/25/2010   S   10,000 (1) D $ 13.44 286,650 D  
common shares               50,000 I by "Gelfond 2001 Children's Trust"
common shares               25,050 I by "Pamela Gelfond Trust"
common shares               25,050 I by "Claudia Gelfond Trust"
common shares               128,750 I by "Richard Gelfond IRA"

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)
5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)
6. Date Exercisable and Expiration Date
(Month/Day/Year)
7. Title and Amount of Underlying Securities
(Instr. 3 and 4)
8. Price of Derivative Security
(Instr. 5)
9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)
10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)
11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
stock appreciation rights $ 6.86 08/23/2010   M     30,000 (2) 06/30/2008 12/31/2017 common shares 30,000 (2) $ 0 530,000 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
GELFOND RICHARD L
110 EAST 59TH STREET
SUITE 2100
NEW YORK, NY 10022
  X     Chief Executive Officer  

Signatures

 Richard L Gelfond   08/25/2010
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) Sale of common shares pursuant to Rule 10b5-1 Plan adopted on November 16, 2009. Mr. Gelfond's sales plan is scheduled to terminate on November 4, 2010.
(2) Exercise of stock appreciation rights pursuant to Stock Appreciation Rights Automatic Exercise Plan adopted on November 16, 2009. Mr. Gelfond's SARs exercise plan is scheduled to terminate on November 17, 2010.

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