If Star Wars had failed, you wouldn't have 90 percent of what's out there today.

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.

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.

We were just trying to make the films that we could get made, and to push the envelope. We didn't realize how far we had pushed the envelope. That all came later. That all came from books and articles about the golden age of the '70s. Believe me, to a lot of us, it was no golden age. The studio heads were very powerful then. They would fire guys right and left. They would look at your dailies and tell you what was wrong with them... a lot of stuff that doesn't go on today. Young filmmakers who are successful today, they don't often have that to put up with.

When you go to a studio with something you want to make, or they come to you with something they want to make, more often than not, it's a tent pole. Not something one single person is really passionate about on a creative level.

But the audience is right. They're always, always right. You hear directors complain that the advertising was lousy, the distribution is no good, the date was wrong to open the film. I don't believe that. The audience is never wrong. Never.

The thing that interests me is the good and evil in everybody. I don't have conventional heroes in the films that I directed, because I believe there's good and evil in everybody.