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 made commercials for corporations like Volkswagen and Coca-Cola, but I was always the one to write them, too, which was a very good exercise, because I learned to tell little stories.

One of the reasons why I agreed to do commercials is that they gave me complete freedom. I just had to have the car in it and write a story around it. I wanted to do something serious set in a Latin American country, but again, it was an exercise in style for me.

I think every beautiful tale in the world hides the truth and reveals it little by little.

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.

As a sensitive filmmaker, I think you have to really be careful in how you explore it. Not that you can't tell any story you want - I'm not calling for censorship or anything. But if you're going to have violence, I think it's important to deal with the consequences of that on a human level, not just to make people laugh.

I just wanted to show the migrants as complex humans with flaws and weakness, with good and bad things, and show that they're parents and family men. I wanted to show them with everything, as they are.