So you've got an amazing screenplay. Maybe not a blockbuster, but one that promises to be spectacular. You have two offers on the table: 1. Ton of cash, but little to no credit. Along the lines of Based on Characters Created By..."The producer and director reserve the right to take any liberties they see fit. Your role ends the moment the check's signed. 2. Minimal money offered, but not only do you get credit, but also be a part of the production itself with some degree of creative control.