Over the years Woodstock got glorified and romanticised and became the event that symbolised Utopia. It's the last page of our collective memory of the age of innocence. Then things turned ugly and would never be the same again.

On a Chinese film you just give orders, no one questions you. Here, you have to convince people, you have to tell them why you want to do it a certain way, and they argue with you. Democracy.

3D is quite a lot more advanced in animated movies; for live-action movies we're just taking baby steps, we're just in the beginning. So when I think of doing that I was very excited. It didn't go as far as I think it should, I'm still a novice, but I think it's fair to say it's a new cinematic medium, experience.

In the past I've made movies that were pretty universally liked. You can't really hate them. You can discard them, but you can't really hate them.

I try to be a partygoer. But at some point I don't know why I'm doing it and fall back. I've been using repression, the struggle between behaving as a social animal. You're seeking to be honest with your free will, less conflict. I think that's an important subject with me. That's who I am, how I was brought up. I think I use that a lot. I mistrust everything I think. Things you think you can trust, believe in, or hang on to, changes. That's the essence of life.

You become the movie you are making.

Depending on the budget [whether to use 3D on future movies]. I think I prefer 3D to 2D now. Also, because of 3D I have to use a digital camera, which is the way it's going anyway. That still confuses me, a digital camera versus film.