All we try and do is make the best films we can. If you do that then hopefully the audiences will come, and they have. Everything else is gravy.

A lot of things change and a lot of things stay the same, they mostly stay the same.

Because actually it's really hard to get things made. It takes years. To fight the fights you inevitably have to fight, even when you've produced Harry Potter, you'd better have the commitment and the passion to knock down walls, not take no for an answer.

But there's something about the simplicity of Auschwitz... there's just nothing. There's just photographs, there's a room full of limbs, a room full of hair, and then you go into the place where the gas chambers were. You walk down these halls and the efficiency of it is so inhuman. The place is so powerful, just for its utter bald, bare simplicity.

I love books. I read voraciously, and I happened to have been fortunate to have been in the right place at the right time.

I got a few things, because I think the props are so beautiful as much as anything else. The detail of the work is something that one has no idea of.

I'm interested in making films of all sizes. During this time I've made a film called 'The Boy in the Striped Pajamas', which is a modest-sized film. I was involved in 'I Am Legend' and 'Yes, Man', but 'Potter' is unique. There'll never be anything like 'Potter' again.