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.

Within the process of filming, unexpected situations occur.

I got to read some writings by serial killers, and they got inside my head. They were quite disturbing. I read disturbing stuff about that very detached way of manipulating people to do things.

Voldemort? That might be real.

I admire the world of the books and the characters that she's created, but I'm not an addict of Harry Potter. I don't feel possessive about it.

I certainly gained a lot by reading about Shanghai.

And although I've been very fortunate in the film work that's come my way, I need to get back to the stage. If I'm away for a maximum of two years, I feel something's wrong.