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.

My whole life I try to make into a comedy, so it would be nice to see that onscreen.

It's not work, it is more of a passion. It is so much fun and it is really makes you feel great at the end of the day. You feel like you are really after doing something good and you are after accomplishing something. Acting is one of these things that I can't really describe - it's just like, why do you love your mum and dad? You know, you just do.

I've always been quite an active person especially when I was younger. When I was in primary school, I used to play lots of sports. I was a sprinter and I did basketball and swimming and Gaelic football and things like that. So I always thought, I guess, that it would be fun to incorporate that much physical activity and work into a dramatic piece.

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.

There are a lot of people who say, 'Yeah yeah, I'm a feminist,' and they're not, actually. I wouldn't want to throw that word around, because it's a very strong thing.

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.