The perfect war is started for obscure reasons, is hopelessly murderous, and accomplishes nothing.

I've never seen myself as a documentary filmmaker. I see myself as a filmmaker, period, and I am interested in drama as well as in documentary.

You know, anything more negative, anything more disparaging, anything more adversarial than what [Donald Trump] does already. The mystery is how he's gotten as far as he's gotten.

I like to think that every movie emerges from the conversations.

The chance that any given sentence is a lie, rather than a truth, I think, is fairly great. An intentional lie, a self-deception, a misconception - there are lots of categories of untruth, not one grab bag. And hotographs can reveal something to us, and they can also conceal things.

It's really hard to know why certain artists become famous and others don't.

The way I go about making a movie... even the ones that are interview-driven, I go into them not knowing what's going to happen, and feeling my way through.