Big Bug Man

Big Bug Man is an animated movie that was going to star Brendan Fraser and the late Marlon Brando.

Plot
Howard Kind is a candy factory worker. After being bitten by many bugs, he turns into a superhero known as Big Bug Man.

Why It Was Cancelled

 * 1) Marlon Brando died on July 1, 2004 due to respiratory failure while the movie was in production.

Result

 * The film's release year was pushed to 2006, then 2007, 2008, and on and on until its release date became unknown.
 * The film was permanently cancelled.