I remember reading that Edward Norton did a major rewrite of the original script that was presented to him. On digging a bit, I found this interesting article, this is an interesting snippet from the article:
Leterrier told Collider that 70 minutes of deleted footage is set to
be released on the inevitable Bluray release. (Leterrier describes the
out-takes: “It’s like the back story. It’s more the sequel to the Ang
Basically, Norton had written a lot of dialogue, conversations, etc. to give the character more depth - but Marvel wanted to make a short, action packed film - so about 70 mins of footage was dropped from the final cut (I believe a lot of which was written by Norton).
Norton was understandably pissed. He was brought onto the project
under the premise that he would have considerable creative control.
But the final cut was, of course, not his. Norton and Leterrier
lobbied for a more nuanced cut of the film that ran about two hours
and 15-20 minutes, but Marvel stuck to their guns.
I am not sure if this answers your question exactly - but I hope it throws some more light on your query.