Ridicule is also a weapon against forces of evil. Really clever, intelligent ridicule.

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 spent the past week here in India getting a sense of the reality of HIV and AIDS in people's lives. Fathers and mothers are dying, leaving children with no support. Stigma and discrimination is ruining the family lives. There is an urgent need for education, information, and increased awareness of HIV and AIDS. The response needs to be now. We cannot afford to become fatigued.

It's great to be on a set where there's time and there's focus and there's also a kind of adrenaline thrill on a set where people are saying: "We have to get this shot, we've have to go, we've got to move on!"

Success is all about being able to extend love to people. The people I consider successful are so because of how they handle their responsibilities to other people, how they approach the future, people who have a full sense of the value of their life and what they want to do with it.

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 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.