I had a rope around my waist, and the rope was attached into the helicopter in case I fell off. And the shot was a shot that began with Kim Novak going out of a house and getting into a bus. Then it was supposed to go over the countryside and find a freight train on which Bill Holden was standing. And then after seeing a good look at the freight train, the camera was supposed to move up into the sky for the end credits.

From my image of digging around in the mud like a grunt, I preferred fighting the war from ships.

When you hear the word tear gas you think, well, your eyes will burn and that's it. But that whole feeling of your whole skin burning, that you can't breathe, you can't inhale, you feel suffocated - it's a very, very terrifying experience.

We, as film-makers, are privileged. We can make people cry or laugh. We can make them think and feel. It is a great privilege and a great responsibility.

Well, of course the general idea was dreamed up by the advertising agency and so my job was to realize that. And we down to Lubbock, Texas, usually and onto a ranch and we would pick cowboys who looked the part and photograph them under dramatic situations - rounding up wild horses or running through streams and then reaching in and taking a drag on a cigarette.

When I started, we had just the camera and the person, mostly. And if you wanted to do a dolly shot, particularly working in Chicago where I began, you'd get in the back trunk of a car, and you'd have a friend drive the car, or you'd get in some kid's little wagon that he plays with and have someone pull that for dolly shots.

Most people, I believe, when they're asked profound questions about their own persona are not really able to enunciate it, because it's a combination of so many things.