James L. Brooks Quote
There was a great director who directed a picture that I wrote who barred me from the set—quite appropriately—and said, I'm sorry, Jim. When you're directing, you don't need to know everything. You need the illusion that you do. And, you know, and I WOULD be there—behind him trying to signal the actors in, you know, in a way I wasn't even aware of.
In the documentary Dreams on Spec