A lot of the films I like are more than fantasies - they're movies fascinated by the technology of space exploration, and they try to honor the laws of physics. I watched the Gregory Peck movie 'Marooned' over and over when I was a kid.

Wow, I wish I could have done something like that.” That’s the thing, with other filmmakers, if I like them I just feel admiration. And yes, I usually say, “I wish I could have been part of that creative process,” because the films I admire like that are so specific that I know the creative process is also so specific, it’s nothing you could just imitate.

I'm interested in new worlds, new universes, new challenges. I always said the only reason to make a film is not for the result but for what you learn for the next one.

The two real leads in 'Children of Men' are Clive Owen and the social environment. You know, this same movie without the social environment maybe is just like a generic chase movie.

There is a certain thing that you have to just stick to the plan, stick to what you want to do, and you try to work with studios and executives that they get it.

I have to say, 'Gravity' is better in 3-D, even though in 2-D the quality of the picture is better. But the 3-D is better.

I think it's always important to give immediate positive reinforcement.