If you're addicted to gambling, you know where to go to gamble. So, if you have a condition where you're addicted to sex, you know where other that are looking for the same thing are going.

[As an actor] I have ideas, but things should always be fluid. You should always be ready to follow an instinct. Something might reveal itself on the day.

What I find really interesting is to try and mix it up, to push myself and try different things. I don't want to stay in my comfort zone. I want to take risks and keep myself scared.

We did a lot of that in drama school: intellectualising and maybe justifying your position. 'I am a thinking actor and I have thought this through' - well, just do it. I much prefer the doing aspect.

I'm always interested in trying to investigate different personalities. I want to keep myself guessing and keep the fear element alive, so that I don't get too comfortable.

"X-Men" is not really about mutants; it's about humanity. I think it's about the human race. We're an absolutely destructive race. It seems that we can't seem to get beyond this level of tribalism that has been around for thousands of years. Anything we fear we tend to destroy.

I don't know what's going to happen. I'm flavor of the month at the moment, but somebody else is going to roll around the corner in three months' time. I just want to keep working. I can't stop!