I didn't believe him. But I don't want to confront him, and I always avoid the subject. Maybe he [took] the idea from Eternal Sunshine? Oops, I didn't say that!

People who get to express their voice are paid by the people who make profit from it. So they're going to make you believe you have to spend your money buying these products otherwise you won't be happy. This is really wrong. Especially the implication it carries.

I don't want to compare myself to him - I don't want people to see me as this great genius - but when I see Charlie Chaplin's movies there is a combination of drama, naivety and social meaning that I can see in myself, at a different level.

When I shoot actors, I have that dilemma. I want the actor to be good, and sometimes I have to push them to a place that isn't pleasant. I always think: 'Is it worth doing for the sake of the movie?' But I have to remember the bigger picture.

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.

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.