I don't want to miss things.

I'm quite sensitive to people noticing me. There are times when I'm relaxed, then others when it does make me self-conscious.

When are you ever settled enough to have kids?

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.

[Doctor Strange] is difficult, he's arrogant, but he's kind of brilliant and charming and you'd think, "Yeah, I'd want him on my head if I needed brain surgery." He's good enough to warrant his arrogance and he respects other people but not when he thinks he's right and he'll just do what he deems needs to be done when he knows or feels that he's right and the problem from humility's point of view is that he is right, he's really really good at his job.

Even though Doctor Strange is an established character, when you're doing an origin story there's a lot of room for manoeuvre.

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