I think that the whole voyeuristic attitude of filmmakers or of me personally - of shooting documentaries and so forth - is an important issue.

If you're making commercials which sell products which are unhealthy or which are unnecessary, I think that you are part of a system.

I was shooting all this time. And there was only one guy who helped to pull him. And I had to think whether I was going to keep shooting or help the guy. And so I kept shooting and then they put him in this little clinic, and I photographed through the window while they had to amputate his leg. And I felt very strange because I didn't - I felt I could have helped, but I didn't help. But then I also felt elated that I was getting a shot that would be important to the film.

Now, I have to - in my defense, I have the say that general knowledge of the deadly nature of cigarettes was not primarily in my mind and nor was it on these poor cowboys, who - many of whom who've died of emphysema since we were shooting.

The helicopter was a U.S. Navy helicopter. There were no civilian helicopters available to film companies, so they just made some stuff out of two-by-four wood. And I would straddle a two-by-four out from the helicopter with a camera and what we call a high hat, which is a low metal stand.

When I search myself carefully I do think it's from my mother. I even feel strange saying that. 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. But certainly influences early on that I felt from my mother. I wouldn't say she was "political" per se; she was sensitive to other people.

I rationalize out, well, how much help could you really be, you know? And maybe if people saw this, they'd realize the brutality of war and figure out there's got to be some better way than killing human beings who are just trying to farm a field.