I was 12 and I remember every­thing. I mean, I had done two films before that. The first was actually with Amy Heckerling. It was so brilliant to work with her on my first film. Atonement was the third one I'd done, and I remember how it felt to arrive on set every day. I remember how it felt to get my wig off at the end of the day. I remember how hot it was.

Ivo van Hove is directing The Crucible, and rehearses in quite an unusual way. We started rehearsals last week and dived straight into the first act, like, five minutes after we all turned up. No warm-ups. We were very intensely immersed in that whole world on day one. It was quite surreal because I've never done any theater before.

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.

All teenagers want to rebel a little and break away. But I think you are always going to want to go back to your parents for that safety they provide.

When I was younger, I was very athletic and I always loved sports and physical things.

If I'm in the middle of a take and I start to think about what I'm doing, I just mess up and I have to stop and so I find that for me, you really need to trust your instinct.

I love a lot of comedy actors and actresses like Kristen Wiig and Tina Fey and all those women who are really brilliant and funny.