The long takes process doesn't allow for that many takes. In the past I have shot over 50 takes of different shots. Sometimes you end up using take 64, sometimes take four.

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.

You have to be very focused about the music that you have inside.

You can write a whole fiction, and you're talking to people who have gone through that, in real life. But the truth of it is that when you're talking to those people, you don't care about your movie anymore. You just want to hear about what they have gone through. You want all of the details. It's amazing.

I used to be very controlling with visuals and editing, and I would pretty much craft the performances; now I have learned to trust the material and the actors.

I learned there's an amazing unexplored territory in terms of narrative. Before, I thought the unexplored territory was the form, the way you shoot a movie. Now, I'm learning about the beautiful marriage between form and narrative.