I have to say, 'Gravity' is better in 3-D, even though in 2-D the quality of the picture is better. But the 3-D is better.

My mom, she was, she studied chemistry. And later on she changed and majored, she changed later in her career, in her life and studied philosophy and then she did a perfect clash, connection between chemistry and philosophy and she became a witch.

I've been very lucky in that the studios really respect me and they give me all my creative freedom. But nevertheless, they are inputs, they have opinions. It's the same thing for me as if you're in a shower and you're coming up with a tune, with a melody, but there are 70 people trying to sing their own melody at the same time. So you have to focus and concentrate, and not lose the track of your melody.

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'.

Historically, there is a fight between the sound designer and the composer. You see them in the mixing room and they're always fighting because the composer wants the music to be heard and the sound designer wants the sound to be heard.

Y Tu Mama Tambien' is one of the first unrated movies to be nominated for an Academy Award for Best Original Screenplay. But many video stores won't take a movie that's not rated, so I had to make the movie an R.

I guess I have a short attention span! I'm interested in new worlds, new universes, new challenges.