I've listened to music all my life. I've always felt that music tells more stories sometimes than films, with more possibilities. Every time you listen to them, songs bring different images and moods - depending on where you are in your life, you can listen to a song and it means something different.

I was aware of the possible biases you could get as a commercial director, like being too concerned about the technical aspects of the form rather than anything of substance. If you keep working in commercials, you can get trapped in a very superficial way of thinking. I always used commercials as an exercise for filmmaking, like going to the gym.

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.

I remember, the first time I saw a [Andrei] Tarkovsky film, I was shocked by it. I didn't know what to do. I was fascinated, because suddenly I realized that film could have so many more layers to it than what I had imagined before. Then others, like Kurosawa and Fellini, were like a new discovery for me, another country.

All people know that they will die, but they don't actually believe it.

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."