I don`t know the facts surrounding Andrew Jarecki`s work. I think it`s a triumph of television. But it does raise troubling issues that I think we as a documentary community, you know, need to address.

One of the great ironies of my career is that people imagine me as some sort of hardcore metal guy because of the Metallica film.

I'm an observer in life, not a participant. That's why I'm a documentarian who looks through a camera. I'm not a touchy-feely person; I'm not a seminar person.

Chevron has wrapped itself in some pretty good arguments that make you scratch your head. The moral responsibility is certainly at its door. I leave it to other people to figure out whether there's legal responsibility.

The filmmaker is not telling you what to think.

I actually have come to believe that if people were more connected to their fellow human beings, if we all felt more centred and fulfilled in our lives, maybe we would be pointing our cameras at a lot less social ills.

If people spend two hours thinking about the direction of their own lives and can relate to the stories they see on screen, to me that's a success.