It's about human imagination and curiosity. What's out there? What's in the great beyond? What exists at levels we can't see with our five senses?

Climate change is critical to me because I'm a parent; I feel a sense of responsibility to the future. I'm not going to be around to see its worst effects, which are going to be hitting in the 2030s, '40s, '50s, but my kids will.

What are the lessons learned? Well, I think number one is curiosity. It's the most powerful thing you own. Imagination is a force that can actually manifest a reality. And the respect of your team is more important than all the laurels in the world.

You don't rest well as long as you're seeking vengeance. I feel sad justice wasn't done, but it's time to move on and sleep well.

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

I tried [being a mogul]. It bores me. I don't really want to produce other people's movies. Because they're either grown-up filmmakers like Steven Soderbergh or Kathryn Bigelow that didn't really need me - and I've produced both of them. It's fun to sit around with them and be collegial, but they don't need me. They can make the film without me. I make my own stuff. There are tons and tons of other things I'm interested in that have nothing to do with movies or are documentary projects.

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