Being on set is quite difficult, because it's so big and you've got to try and relax, which isn't easy when you know you're in a massive film. I was terrified for quite a long time.

When I was young I became kind of a party animal. I had a massive crash. My health suffered. I was just overdoing it. That person could not be further from the one who emerged from that earlier experience. I regressed massively.

I'm not confident in social situations; just going up to someone in a bar and saying 'Hi' is going to be even more difficult because they won't know the real me. They will just know me as a fictional person I play on the screen.

I know that might sound perverse because I played Julian Assange but, honestly, I don't think it would be fair for me to judge the man. I realize that makes me a bit of a hypocrite because I was portraying him a certain way, but we were always open to the fact that this was an interpretation, not any kind of exact evidence of who the man was.

The world of 'Sherlock Holmes' and the world that we live in now is big enough to take more than one interpretation.

I'm sad in a way that the character [Doctor Strange ] leaves [neurosurgery] behind. It's an amazing discipline.

I'm aware of the power of looks. I've wanted to play roles that have gone to much better-looking people and you just think 'Oh well, that's the pin up guy's an actor like my friend James Mcavoy, who's gorgeous on screen. I'm not that. But at least I don't have to worry about taking precious care of my face because it's my commodity. That's a great freedom. I'm not afraid of being heinous for the sake of a part