People call me a perfectionist, but I'm not. I'm a rightist. I do something until it's right, and then I move on to the next thing.

Hate is a disease, and in 1930 I became sick with hatred.

It’s not a requirement to eat animals, we just choose to do it, so it becomes a moral choice and one that is having a huge impact on the planet, using up resources and destroying the biosphere.

Here's my philosophy in life: If there's a fire, you put it out. If there's a flood, you fill sandbags and you build a dike. You roll up your sleeves and you get to work.

The nation that leads in renewable energy will be the nation that leads the world 10, 20 years from now.

Don't get seduced by your own stuff. Don't get high on your own supply. The hardest thing as a filmmaker is when you're watching a film that you've worked on for several years. You know every frame so intimately that holding lots of the objectivity of a new viewer who has just seen it for the first time is the hardest thing. Every aesthetic decision you make - and you make thousands of them every day, have to - in theory, must be done from you being a blank slate. You almost have to run a program, like a mind wipe, every time you watch the movie.

I watched a couple of really bad directors work, and I saw how they completely botched it up and missed the visual opportunities of the scene when we had put things in front of them as opportunities. Set pieces, props and so on.