I had read a very early draft of this script, even before there was a filmmaker attached to it. (awardsdaily.com)
The Act One chaos created from the Hulk's rampage was given to Wolverine (not present in early drafts of the script), as played by James Cagney. (leezachariah.com)
Maybe an early draft of the script called him «The Associate Professor.» (sciencemag.org)