6. Edward Norton
"You don't want Edward Norton to star in your movie." ~ screenwriter Joe Eszterhas in his sleazy memoir The Devil's Guide to Hollywood.
Ever wondered why Edward Norton doesn't star in more movies? The two-time Oscar nominated actor has proved his thespian powers again and again, but somehow he still remains more of a supporting actor than a leading man. Rumors that Norton can be hard to work with have circulated for years, but no one really took them seriously until The Incredible Hulk incident. Marvel cast Norton into their universe as Bruce Banner in what was sure to be a hulk-smash of a move. However, when executives sat down with the actor to hash out the role, Norton made it very clear that he wanted to do more than just star. In their first meeting, despite production already being under way, Norton was insistent that he be able to rewrite the script. A dubious Marvel agreed, including most of Norton's ideas in the beginning, only to cut them out for the theatrical release. Bruce got angry, really angry, especially when the Writer's Guild ruled he had not contributed enough to the script to receive credit. The fallout was made bluntly obvious when Marvel recast the role for The Avengers with Mark Ruffalo.