Sometimes the director will want you to write about the character, sometimes he'll want you to live in the location that the character is from or something like that, but I don't usually make a lot of notes or anything like that.

I've always been quite mature because of the way my parents brought me up. They were very good at talking to me like a person rather than a baby, and I was around so many actors and directors from such a young age because my dad is an actor. I was more comfortable with adults rather than actually being an adult child.

For me, clothes are about individuality. When I wear things that are different and it works, it makes me feel good.

Once you move away from home, it's never quite the same again. You expect everything to be just as you left it, and it never is. It's almost the first step into adulthood, realising you've got to make your own way.

I remember being on Atonement and it felt very right to be there. There was so much excitement every day. I remember very vividly how it felt to be a child on a film set, and that is actually really important to hold on to for as long as you continue to make films.

One of the things that would steer me away from a franchise is that I'm playing the same character all the time and I wouldn't want to be known for that.

I think when you get on with the actors that you're working with, even if you do have really intimate scenes, as long as you get on well, and have a bit of a laugh while doing it, then it's fine.