They figured out a way to keep his name off it (some legal hooey), but then the press got wind of it and the backlash was so intense that they brought him on as a last-minute 'creative consultant' AFTER THE SCRIPT WAS FINISHED AND FILMING WAS UNDERWAY.
Anyway, I've heard about the awfulness of the script, but I really would like to see Steve Carell's performance. He's great.
I'm really unsure about this one.