[Doctor Strange] is still quite cocky by the end of the film. No, I'd say the major curve for him is that he learns that it's not all about him, that there's a greater good. But what he thinks he was doing as a neurosurgeon, that was good because it benefitted people's health was really just a furtherment of his attempts to control death and control his own fate and other people's, but that's still driven by the ego.

Mads [Mikkelsen] and I have a really epic brawl - a week shoot, lots of rehearsal - and he was just delightful. He's a dancer and a gymnast so he knows how to plant the moves. He was always saying, "Are you okay?" When you've got that level of mutual consideration you form a family very quickly.

Even in cerebral roles that are seemingly intelligent and nothing else, I think it's so important to wrap your characterization in a physical form as well.

Mystique is rare now, isn't it? There aren't that many enigmas in this modern world.

Honestly, it's very satisfying, and I'm very, very happy about how successful the last few years have been... It's great for the people who supported me early on to see the success I'm enjoying now.

I have memories of clouds whisking by while sitting in the pushchair on the roof of my parents' flat. I loved it! I just loved staring at the clouds and dreaming away.

I was thrilled with how the first series of 'Sherlock' was received. It was such great fun to film, which makes it so rewarding when something you enjoy is so well received.