If it was up to the studio, everything would be shot with a camcorder.

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.

You can have a strong economy or you can help the environment, but you can't do both at the same time. That's ridiculous. In fact, as a sustainable vision for a healthy economy has to involve changing our energy policy and changing with respect to the natural world. Because we're hitting nature's thresholds, we're hitting nature's limits with respect to water and crop yields and energy use and fossil fuels heating the atmosphere at the same time we're past global peak and running out of that.

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

What are you gonna do, talk the alien to death?

Every time my cameras go out on a movie, we learn something new and then we take what we learn and we put it into the next generation of the cameras so we're constantly improving. It's kind of like building a race car, racing it, then running back to the shop and working on the engine some more and tinkering with it to improve it.

I want to challenge all of you as people of deep conscience, people who are environment stewards of the earth and oceans ... By changing what you eat, you will change the entire contract between the human species and the natural world.