I personally can't handle frivolous violence. I overreact to it.

My country has been wracked with violence for a long time. Just to see all the violence on the news makes you sick. It's true that violence is in our nature, but I try to explore deeply where it comes from and where it goes and what it creates. Not in a moralistic or preachy way, but just to observe the real consequences of violence in a human being or in a society.

The actors make the film. They're the ones that take this theoretical movie that's in your head and make it real. The success of a film is entirely on their shoulders. I admire them, because acting is such a difficult thing to do, and I personally can't understand it.

In the creative process, my ego has always been a huge tyrant ... a dictator and kind of rude and very misleading, because sometimes when I'm doing something, I say, "This is great! This is fantastic! Very genius!" And 20 minutes later, I feel like a dead jellyfish. "You are a stupid a**hole. This is a piece of sh*t. Nobody will care about it."

I don't have anything against commercials, and I really like BMWs.

When people laugh and applaud as characters are killing each other, and you never see the body that's lying there, or you never see the family that suffers, then it turns into a cool thing to do, like a videogame. Then, when you watch the news and see that 15 soldiers were killed, you start to see them as just numbers, material, information, images. We lose the real weight and real value of one simple human life.

I was a street kid, basically. But really, Mexico City has always been this big, complex monster of a city that has always had real problems and needs, and I've always found my way through it in different ways.