I find the whole concept of being ‘sexy’ embarrassing and confusing.

I find the whole concept of being 'sexy' embarrassing and confusing. If I do a photo-shoot, people desperately want to change me - dye my hair blonder, pluck my eyebrows, give me a fringe. Then there's the choice of clothes. I know everyone wants a picture of me in a mini-skirt. But that's not me.

I like Valentino a lot - they never use actresses in their campaigns.

Hermione uses all these big long tongue twister words. I don't know what she's going on about half the time!

I genuinely haven't really had a rebellious phase. I think it's just because of the way I was brought up. I think it's because I left home when I was ten years old.

I am literally obsessed with Lena Dunham. She's, like, my favorite person in the world. I follow her on Twitter; I read her every day.

It sounds so geeky, but I really do like studying and reading, and if I'm not working on 'Harry Potter,' then my greatest relaxation is to sit with a book.