What moves me in art is how we question who we are as people.

I loved doing Harry Potter. I had a great time on that. And I think it's good to have a mix. I think you're learning all the time.

Most films are rooted in a book or a comic strip, but I don't go out there saying I want to do adaptations.

I have a lot of stuff I want to talk about and offer up. It would be odd not to have ideas about something.

I'm interested in the spirits of people. In the theatre, there's the acting part of acting - and I'm not saying that can't be great - and there's the essence. To explore that essence, you need a key, a look, a gesture, an insight that unlocks the person's soul.

Kenya doesn't have much of an infrastructure for hosting a film of this scale. Our producer decided that for the film to really work it had to be in Kenya.

When she was younger, my mother was quite committed to Roman Catholicism. But she got disillusioned with it and moved closer to something like Buddhist beliefs near the end of her life.