The problem is, with a lot of children's films, they are very commercial.

The first dolly track was somebody who had the idea to put the camera on a boat on a canal. So the boat would move very slowly but steadily. So they would see all that surrounds you and you'd see the landscape changing slowly. So that was the first time.

I've always liked the idea of inventing stuff. My father told me, because I was naïve, I would think things could work and therefore do them, because I would have no doubt even though there was no solid foundation for this confidence. I don't think I would be a real inventor. But when I set out to do animation, which was my first step into film-making, I realised I could achieve this idea. I could take some elements, create a sort of clumsy invention, and make them work for the camera.

If you're not grown up enough to understand that a trailer is not done by the director, then fine. Judge the movie from the trailer.

I want to see abstract art move. Especially in the '30s, you had animators doing innovative work, and I was entranced by that. It's basically what you see when you close your eyes, when you fall asleep.

Misinterpretation leads me to inspiration and creativity because I think my brain is trying to figure out some information that I'm confused about.

When I saw The Matrix and other movies of this type, I wished I had been given the opportunity to express myself with all this technology and do something sort of big in scale, but the right material never really came my way.