I can pick up a screenplay and flip through the pages. If all I see is dialog, dialog, dialog, I won't even read it. I don't care how good the dialog is - it's a moving picture. It has to move all the time... It's not the stage. A movie audience doesn't have the patience to sit and learn a lesson. Their eyes need to be dazzled. The writer is the most important element in the entire film because if it ain't on the page it ain't going to be on the screen.