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.

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 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.

Every time that I'm challenged with a film I think that I haven't learned anything, that every film is different and that every thing that I have learned is useless in this new adventure.

I hate superficial violence. It's shallow and stupid, and the impact on the audience is really bad.

Of course, there's always one theater that shows some kind of European film. Now, fortunately, you have DVDs, so it's possible to get anything you want within a few hours. In those days, it was virtually impossible to get Italian films, or German films, or whatever. So I grew up with very standard, mainstream films.

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.