The literature now is so opaque to the average person that you couldn't take a science-fiction short story that's published now and turn it into a movie. There'd be way too much ground work you'd have to lay. It's OK to have detail and density, but if you rely on being a lifelong science-fiction fan to understand what the story is about, then it's not going to translate to a broader audience.

We have nightmares because our brain is running simulations to put us in jeopardy to see what we'll do or to acclimatize us to that idea that something bad could happen. It's just how human beings are wired because the entire time we were evolving we had to jump quick or the leopard would get us or whatever it was. It's Darwinian.

With 'Avatar,' I thought, Forget all these chick flicks and do a classic guys' adventure movie, something in the Edgar Rice Burroughs mold, like John Carter of Mars - a soldier goes to Mars.

A director's job is to make something happen and it doesn't happen by itself. So you wheedle, you cajole, you flatter people, you tell them what needs to be done. And if you don't bring a passion and an intensity to it, you shouldn't be doing it.

Hope is not a strategy. Luck is not a factor. Fear is not an option.

I guess Titanic because it made the most money. No, I`m kidding. I don`t really have a favorite. Maybe Terminator because that was the film that was the first one back when I was essentially a truck driver.

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.