I was quite academic, quite geeky when I was a kid. I was more interested in going to school than I was in becoming a film star or something.

I was really quite geeky at school. At one point, I wanted to be prime minister or a mathematician.

I'm still Sean that me mates went to school with, not Sean the film star. And that's the way I prefer to be.

When I was young, there weren't any teenage girls I could relate to in film. They were all put in boxes: the virginal good girl, the really sarcastic asexual one. I wanted to do something that represented how I felt then.

I think you have to really, really want to be a film star.

I wanted to be a martial arts film star when I was a teenager.