Up until I was 12 my sisters used to dress me up as a girl and introduce me as 'Claudia'! Twelve was a real turning point for me as I moved to a mixed school, and then I became cool and discovered hair gel.

If I do decide one day to stop acting, I just hate the idea of people going: 'Oh, did you ever do anything else besides that Twilight thing?'

I think 26 is the turning point. I’ve got to make up for 10 years of living like a degenerate. I’ve suddenly become conscious of being unhealthy. You’ve spent every bit of free time since [the age of ] 15 in a pub. And suddenly you’re like, ‘Oh God, I don’t want to be this grey ghost sitting there with a pot belly. I’ve got to get it together.

You can make five massive hits in a row and still not get cast by the directors who you want to work with doing little movies.

I went to one of these signing conventions. It was one of the most interesting experiences I've had. It was so strange that people would pay for autographs. You keep thinking you should do a little dance for them as well or something.

I wasn't at all focused on school, and I didn't achieve much. But I've got a sense of urgency now. I feel I can't let any more time waste away.

When I was 17 until, I don't know, 20, I had this massive, baseless confidence. This very clear idea of myself and how I would achieve success, which involved making decisions. I saw myself picking up the phone and saying 'Absolutely not' or 'Definitely yes.' Having control. Except you have to figure out whether the way you think at 19 or 20 has any value. And eventually I understood, with all that control, which was probably illusory, I wasn't progressing. So now I'm relinquishing a bit. I'll be a tiny bit naked.