With theatre especially, you don't want to do it unless you love it - there's no way you can pull it off, making people happy, making yourself happy for 12 weeks or whatever.

There was an article in the New York Times that said that young men can't maintain healthy relationships because they're so influenced by pornography and what they see on the screen. It's something to be talked about.

I did The Seagull, the Chekhov play, on Broadway, a couple of years ago, and I had done it in London, and I became completely obsessed with the character, Nina, that I played in that. She's an actress. I couldn't find a play after that, that I wanted to do, because I couldn't think of doing anything else. Every part is a disappointment, once you've done that part.

It doesn't matter what you feel - ultimately, it's what the audience feels. You can finish a scene and think to yourself, 'Oh, God. I was so deep in that moment,' and find it just didn't play. I don't know if I have very good radar about that or not.

With theatre especially, you don't want to do it unless you love it - there's no way you can pull it off, making people happy, making yourself happy for 12 weeks or whatever.

I was quite straight-laced. I was quite academic until I was about 14 and then I went to boarding school where I had the opportunity to continue to be very academic, but got less interested in it and became more involved in acting. And then when I was applying for universities I used a couple of places on my UCAS form to apply for drama school without telling anyone... but didn't get into drama school. But that was the most rebellious thing I did.

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.