IWERKS ENTERTAINMENT INC

Q: Sep 30 2001

FY: Jun 30 2001

FY: Jun 30 2001

Q: Mar 31 2001

Q: Dec 31 2000

Q: Sep 30 2000

FY: Jun 30 2000

FY: Jun 30 2000

Q: Mar 31 2000

Q: Dec 31 1999

Q: Feb 11 2000

Q: Sep 30 1999

FY: Jun 30 1999

FY: Jun 30 1999

Q: Mar 31 1999

Q: Dec 31 1998

Q: Sep 30 1998

FY: Jun 30 1998

Q: May 15 1998

Q: Dec 31 1997

5,7

5,7

5

5,7

5

5

5

5

1

5

1

5

5

5

5

5

5

2

5

5

Certification of termination of registration of a class of securities (Section 12(g))

Registration statement under Securities Act of 1933 (amendment)

Registration statement under Securities Act of 1933

Registration statement under Securities Act of 1933

Prospectus Supplement for Delayed or Continuous Offering

Registration statement under Securities Act of 1933

Registration statement under Securities Act of 1933 (amendment)

Registration statement under Securities Act of 1933 (amendment)

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SIMEX INC

IWERKS ENTERTAINMENT INC

SIMEX INC

IWERKS ENTERTAINMENT INC

HEARTLAND ADVISORS INC

HEARTLAND ADVISORS INC

HEARTLAND ADVISORS INC

DIMENSIONAL FUND ADVISORS INC

HEARTLAND ADVISORS INC

DIMENSIONAL FUND ADVISORS INC

HEARTLAND ADVISORS INC

DIMENSIONAL FUND ADVISORS INC

WELLINGTON MANAGEMENT CO LLP

VANGUARD EXPLORER FUND INC

HEARTLAND ADVISORS INC

IWERKS ENTERTAINMENT INC

IWERKS ENTERTAINMENT INC

HEARTLAND ADVISORS INC

HEARTLAND ADVISORS INC