My grandfather lived across the garden from us, and in his attic he had a lot of radios, appliances and inventions that he had made over 50 years, such as a keyboard called a clavioline, which can be heard on some Beatles songs - it was popular in the 60s. So we had all that at home.

The problem when you edit a film together, when you shoot a film, you are drawn into the moment. You want each moment to be special and full of life.

It's part of my job to maintain the emotional reality and the naturalism even when the atmosphere is contrived.

Perhaps my favourite story is 'Le Passe-Muraille' by Marcel Ayme. It's about a guy who wakes up with a weird faculty that means he can walk through walls. He's a very shy clerk, and he uses it to get revenge, or vent his frustration.

It's very hard to say I'm surrealist. It's like saying I'm poetic. It's not something you want necessarily to be aware of.

It's a very American thing that everything has to be a business. Americans think... I like America, or I would not be here. There are great qualities to this country. But this sense that everything has to be a business is sometimes overwhelming.

I'm not judging the films. People make these connections through a film, or because they know them. But the fact that they erase them and have to start from scratch, I think that's an important point. A lot of kids, when they have a camera, have tended to do remakes of existing films. You have a lot of kids that make Star Wars. And I think that's creativity, but not as much creativity as starting from scratch.