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

The studios mostly threw away the negatives of the classic films. They had no interest in their legacy.

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 have control over every single frame on Blu-ray. If I want a scene bluer, I get that scene bluer. Originally, there was some fluctuation with the prints. If you made a thousand, or a few thousand prints, there is no control over any of that. But now I can make a master using the digital process.

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.

The art of movies is to allow the audience to suspend their disbelief. They need to use their imaginations.

I don't look back or analyze my films. I just make them. It's for someone else to look at.