In the case of a film like The Exorcist or To Live and Die in L.A., I saw the whole movie in my head before I went to shoot it. I never did storyboards, or anything like that. I had the film in my head.

I've seen my own films close to a thousand times in one form or another. When you edit them. When you shoot them. Then you run them over and over again for sound and music. Then you'd go to premiere screenings, and have to do promotional screenings in other cities. I can't watch any of my old films.

One of my themes is that there is good and evil in everyone. I was not out to make these guys heroes. I really don't believe in heroes. The best of people have a dark side and it's a constant struggle for the better side to survive and to thrive.

Style is something that's extremely important, but it must grow naturally out of who and what you are and what the material calls for. It cannot be superimposed.

The informing idea of what you want to say and do, that's what will take you from film school to professional - the idea. That's what is original to you.

The first work of the director is to set a mood so that the actor's work can take place, so that the actor can create. And in order to do that, you have to communicate, communicate with the actors. And direction is about communication on all levels.

'Star Wars' gave birth to all the computer-generated superhero films.