There is a tension in relationships between wanting to return to the womb, but also wanting to be free. Because sometimes the woman's attentions can be overly maternal, and you want to go, 'Ahhhh!'

I was grateful to have two weeks to shoot this one scene in Harry Potter. It's a big, big scene, but they have to deliver. And they have high expectations.

I'm not very good at being domesticated. I've tried. The domestic life I find claustrophobic - the rituals and habits and patterns.

There is a tension in relationships between wanting to return to the womb, but also wanting to be free. Because sometimes the woman's attentions can be overly maternal, and you want to go, 'Ahhhh!'

Little moments can have a feeling and a texture that is very real.

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.

In the studio system, things are expected of a film. By the first, second, third act, there's a generic language that comes out of the more commercial system.