UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 4)* Blockbuster Inc. (Name of Issuer) Class A Common Stock Class B Common Stock (Title of Class of Securities) Class A: 093679108 Class B: 093679207 (CUSIP Number) Marc Weitzen, Esq. General Counsel Icahn Associates Corp. & affiliated companies 767 Fifth Avenue, 47th Floor New York, New York 10153 (212) 702-4388 (Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications) April 18, 2005 (Date of Event which Requires Filing of this Statement) If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of " 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box / /. NOTE: Schedules filed in paper format shall include a signed original and five copies of the schedule, including all exhibits. See Rule 13d-7 for other parties to whom copies are to be sent. *The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter disclosures provided in a prior cover page. The information required on the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes). SCHEDULE 13D Item 1. Security and Issuer This Statement constitutes Amendment No. 4 to the Schedule 13D previously filed on December 14, 2004 and amended on February 17, 2005, April 7, 2005 and April 8, 2005. All capitalized terms not otherwise defined shall have the meaning ascribed to such terms in the previously filed statement on Schedule 13D. Item 4. Purpose of Transaction Item 4 is hereby amended to add the following: On April 18, 2005, Mr. Icahn expressed his belief that Issuer should put itself up for sale. SECURITY HOLDERS ARE ADVISED TO READ THE PROXY STATEMENT AND OTHER DOCUMENTS RELATED TO SOLICITATION OF PROXIES BY MR. ICAHN AND HIS AFFILIATES FROM THE STOCKHOLDERS OF BLOCKBUSTER INC. FOR USE AT ITS ANNUAL MEETING (A) WHEN AND IF THEY BECOME AVAILABLE, BECAUSE THEY WILL CONTAIN IMPORTANT INFORMATION, INCLUDING INFORMATION RELATING TO THE PARTICIPANTS IN ANY SUCH PROXY SOLICITATION, AND (B) WHEN AND IF COMPLETED, A DEFINITIVE PROXY STATEMENT AND A FORM OF PROXY WHICH WILL BE MAILED TO STOCKHOLDERS OF BLOCKBUSTER INC. AND WILL BE AVAILABLE AT NO CHARGE AT THE SECURITIES AND EXCHANGE COMMISSION'S WEBSITE AT HTTP://WWW.SEC.GOV. SIGNATURE After reasonable inquiry and to the best of each of the undersigned knowledge and belief, each of the undersigned certifies that the information set forth in this statement is true, complete and correct. Dated: April 19, 2005 HOPPER INVESTMENTS LLC By: Barberry Corp. By: /s/ Edward E. Mattner Name: Edward E. Mattner Title: Authorized Signatory BARBERRY CORP. By: /s/ Edward E. Mattner Name: Edward E. Mattner Title: Authorized Signatory HIGH RIVER LIMITED PARTNERSHIP By: Hopper Investments LLC, General Partner By: Barberry Corp., member By: /s/ Edward E. Mattner Name: Edward E. Mattner Title: Authorized Signatory ICAHN PARTNERS MASTER FUND L.P. By: /s/ Edward E. Mattner Name: Edward E. Mattner Title: Authorized Signatory [Signature Page of Amendment #4 to Schedule 13D - Blockbuster Inc.] ICAHN OFFSHORE L.P. By: /s/ Edward E. Mattner Name: Edward E. Mattner Title: Authorized Signatory CCI OFFSHORE LLC By: /s/ Edward E. Mattner Name: Edward E. Mattner Title: Authorized Signatory ICAHN PARTNERS L.P. By: /s/ Edward E. Mattner Name: Edward E. Mattner Title: Authorized Signatory ICAHN ONSHORE L.P. By: /s/ Edward E. Mattner Name: Edward E. Mattner Title: Authorized Signatory CCI ONSHORE LLC By: /s/ Edward E. Mattner Name: Edward E. Mattner Title: Authorized Signatory ICAHN & CO., INC. By: /s/ Irene S. March Name: Irene S. March Title: Controller /s/ Carl C. Icahn_____________ ----------------- CARL C. ICAHN [Signature Page of Amendment #4 to Schedule 13D - Blockbuster Inc.]