If you want to run for Prime Minister, you can. If you don't, that's wonderful, too. Shave your armpits, don't shave them, wear flats one day, heels the next. These things are so irrelevant and surface to what it is all really about, and I wish people wouldn't get caught up in that. We want to empower women to do exactly what they want, to be true to themselves, to have the opportunities to develop.

Becoming yourself is really hard and confusing, and it's a process. I was completely the eager beaver in school, I was the girl in the front of the class who was the first person to put her hand up, and it's often not cool to be the person that puts themself out there, and I've often gotten teased mercilessly, but I found that ultimately if you truly pour your heart into what you believe in - even if it makes you vulnerable - amazing things can and will happen.

To be honest, I've always had far too much freedom. I had a job when I was 10. I started living on my own when I was 17 or 18. I've earned my own money; I've traveled the world. What would I rebel against? I've had so much freedom, sometimes it was hard. My parents wanted to protect me, but they had no idea how to. I had to learn as I went and make my own mistakes. I went from being totally unknown and never acting professionally to being in a major movie and being very famous. It all happened so quickly, I didn't have any time to work things out. It's been pretty scary at times.

It's very hard to describe your own style. And I'm young, so I'm still experimenting. But I think it's quite British and very much about individuality.

I've never wanted to grow up too fast. I wanted to wear a sports bra until I was 22! ... The allure of being sexy never really held any excitement for me. I've never been in a terrible rush to be seen as a woman.

I think it's so much sexier to be understated. It's more intriguing to be sexy in a less obvious way.

The most embarrassing one is that I had no idea - and please excuse me - that you guys call a condom a rubber. My version of a rubber is an eraser. I've done that - very loudly asked for a rubber and people have given me strange looks. That was embarrassing!