Offhand the only exception I can think of is Toy Story, which I believe was scrapped and re-written twice. It also had quite a number of writers (at least three). Then again the Pixar team may have been more cohesive - as you've already pointed out having several writers isn't a problem if they're working as a team, it's when people are dropped and new people are brought in to revise their work that the problems start to crop up.Scrumpmonkey said:The alarm bells should have gone off at "3rd Screenwriter", if a movie is being made by multiple people all of whoch work on it at differet times or simply quit stay the hell away from that movie. This kind of cobbled together design process leads to half-finished scrips by shooting time and abject msyery in the story department.
The best films have a core team in palce from pre-production all the way to the DVD extras and beyond in some cases. Films should not pass though multiple writers hands after they drop out of the project.
Maybe there's a better exception out there of someone who truly came in and managed to pull off a screenplay that had gone through several writers already.