It makes it easier, if you can't do an American accent. I don't know. It's different. I played a character in Never Let Me Go where the script for my character was very sparse, and I enjoyed it. With Never Let Me Go, I had a whole book written from my character's point of view, so I always knew where I was. But, with Ryan [Gosling], it was just easy. He's such a brilliant actor and he is so prepared. He doesn't have to warm himself up to be in a scene. He's just in it. It draws you in, in a way.

It's funny that you can murder someone horribly and graphically and disturbingly in a horror film, and it's not an NC-17, but if you put a naked man on screen, everyone freaks out.

I wanted to be a musical theatre actress - I wanted to play Sally Bowles, forever and ever always.

I've always been quite careful about what I wanted to do. I've just never wanted to revisit old ground or do something that's easy. I want to do something that I would look at and go, "I don't know what to do!" The most exciting thing is when you're a bit scared, so I'm looking to find something that's really terrifying.

On film sets I can see everyone, and I really still find that so difficult.

When you idolise someone, or you hold someone in such high regard, you just want them to be everything that you think there are - and when they are it's just lovely.

Posing on the red carpet feels like you're selling something that has nothing to do with you. If you do it with someone else, it's like we're saying, 'Oh! We come as a pair! Would you like to buy both of us? We're available for weddings and Bar Mitzvahs!'