I think it was really crucial that the actress was age appropriate. There are films, such as An Education, where that wasn't the case, and I think that really affects how you receive what you're watching.

Ive always been pretty energetic.

With the success of the last three or so years, when a lot of people start treating you differently, there's a danger that you may start to think of yourself differently. You rely on your friends to say, 'Hey, wake up!

I try to educate myself as much as possible, as I do with the director and the designers and everyone I used to work with. It just helps, I think, with the frame of reference for who you're working with.

You're only as good as the sum of your parts, and one person can't be a team.

At this age - I'm 44 - I think life's too short. I want it to mean something to me, if I'm going to spend that much time doing it.

I think a huge amount of it is because of the Internet. Every single thing in the world is accessible with a few clicks. Almost every child, by the age of 13, has seen pornography. That's clearly different. It used to be really hard or really humiliating, as a 13-year-old, to access pornography. If you wanted to take a look at a Playboy, it was really challenging. Today, it's a joke.