I think we get into all kinds of difficulty by saying photographs should be taken in a certain way which guarantees their veracity. I think that's a slippery slope to hell.

People like nonfiction presented to them in a certain way, so that they don't have to think about whether it's true or not. They like it to have that imprimatur of respectability, of genuineness.

If you told me thirty years ago that people would be parodying documentary films, I never would have believed it. It wasn't clear that the films themselves even had an audience, let alone an audience for parodies of them.

Philip Glass once told me, "They can always copy what you've done, but they can't copy what you're going to do."

Maybe [killers] is one of my real passions. Why deny it?

People often trust low-res images because they look more real. But of course they are not more real, just easier to fake. [...] You never see a 10-megapixel photograph of Big Foot or the Abominable Snowman or the Loch Ness Monster.

You can't tell by looking at a film-clip whether it is a drama or a documentary without knowing how it was produced.