I've worked with Mankiewicz, Hawks, Kazan, Wyler, Wilder. I've been very fortunate. All of them work differently. I've even directed a couple of pictures, so I have respect for the work. But no matter what anyone says, it's a collaborative art form. I think the problem is that we've been contaminated by the European concept of the Auteur System. I've had movies where I bought the book, developed the script and cast the whole picture, but then the director walks in and says, "It must be a John Smith film." I think sometimes we emphasize that too much.