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.

When I learned to switch jealousy for admiration, it unblocked a lot of things.

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.

I was not aware of how much I loved 'Canoa' until I saw it after doing 'Y Tu Mama Tambien' and realized that my voice - over about the story's historical context - that narrator - came from 'Canoa'.

I love that process in which there is no safety net. Then the actor also can allow mistakes, because there's no such a thing as a mistake. You're working with good actors, that thing that starts as a mistake becomes actually the life of what is going to follow in the scene. I find that it is fantastic, and for me it is easier than for the actors.

I have my set rigged with the biggest sound system possible and have a mini jack for my iPod attached to my director's chair. I find playing music is a very direct way to communicate with actors and the crew, especially those crew members who are on the periphery of the set. I like dancing on set too, it's a good way to release tension.

I produce the way I would love to be produced: In ways to create the best conditions to make your movie, but also to create a space in which the director calls the shots.