Everybody is always talking about droughts and sea level rise, but when human civilization, with more crowding and greater resource depletion, is under that much stress, it translates into wars and huge displaced populations. The Syrian refugee crisis is just a first taste of what it's going to be like. I don't want my kids growing up in that kind of world.

I'm certainly not a fan of conversion when you could shoot the movie in 3-D.

The future is not set. There is no fate but what we make.

I like the evening in India, the one magic moment when the sun balances on the rim of the world, and the hush descends, and ten thousand civil servants drift homeward on a river of bicycles, brooding on the Lord Krishna and the cost of living.

Usually, when you go to a movie, your consciousness floats above the film. 3D sucks you in and makes it a visceral experience.

I mean, you have to be able - you have to have made the commitment within yourself to do whatever it takes to get the job done and to try to inspire other people to do it, because obviously the first rule is you can't do it by yourself.

Every time you dive, you hope you'll see something new - some new species. Sometimes the ocean gives you a gift, sometimes it doesn't.