'Great Expectations' is one of the greatest stories.

Ralph Fiennes was a big hero of mine acting-wise growing up and while I was training. I just find him so watchable. He was playing this very intimidating character when we worked together and it certainly felt like he was in character off set as well! He was very cool. Before a scene, he'd be like, "Come on. Let's improvise. Let's just do stuff." But Jesus Christ. He's Ralph Fiennes!

The Railway Man was a particularly intense and immersive experience. I definitely got carried away. I lost about 35 pounds. I really was incredibly skinny and also quite unwell while we were filming. It wasn't very healthy. I don't recommend it. But then also doing the torture scenes, the water boarding stuff, there wasn't really any other way just to do it really.

It was a movie [The Railway Man] that stayed with me a long time. It's still one of the things I'm most proud of. I got to know the man that I was playing and unfortunately he passed away just before the movie came out. It's one that meant a huge amount to me, and one that I'm particularly proud of.

I'd love to get fat on camera. Wouldn't that be great? I'll tell you what's almost as hard though, getting bulked up, getting that big. Here we are in LA and you see guys walking down the street and everyone looks like Arnold Schwarzenegger. That's really quite grim, if you haven't done it before.

When I find a look that I like, that's my entire wardrobe.

I spend a lot of time in L.A., and I think it would probably be easier if I lived there work wise, but there's no city like London, there is so much going on. I can jump on the Tube and be anywhere in 20 minutes, and all my friends and family are here and I'm not prepared to give that up.