I find myself more interested in producing. Not because I'm interested in the financial side of it, but just getting together the right elements to make a film, that side of production. I would not be good on the financial side. It would be a disaster from the beginning.

The image onscreen takes you forward, it's the driving force of the piece and it's also the information that you're given.

You collect as much information as you can and then you put it into the mulberry of your mind and hope that you come up with a decent wine. Sometimes you do; sometimes you don't.

By the time I came to do the final ones [Harry Potter's film], I was working on something that was massively successful. There was a huge difference in indulgence and all sorts of stuff. A very big difference in peoples' attitudes. They were very pleased with themselves. In human terms, it was quite interesting to see the difference.

My fathers a clergyman, and he was in the mission field for a certain amount of time in British Honduras, which is now Belize.

I'd say the film to avoid is a director's second film, particularly if his first film was a big success. The second film is where you've really needed to have learned something.

I've spent a great deal of my life doing independent film, and that is partly because the subject matter interests me and partly because that is the basis of the film industry. That's where the film-makers come from, it's where they start and sometimes its where they should have stayed.