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

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 suppose my bodily proportions are quite flattering. I'm ripped, doing something I wouldn't normally do with my body, or having done to it, involving Watson.

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.

[Season 4 of Sherlock Holmes will be] myopically dark. You're talking about the end of the universe darkness. You can't see in front of you and would walk into everything dark.

I'm not one for doing the children's party version: "Hi, I'm a character in a movie and now I'm in reality!" I was doing the last shot of the film before reshoots outside their shop. I was starting my run into the frame and I thought, "You are literally ending where this began. The loop of serendipity's too much to not go in and acknowledge it." I just wanted to see the look on their faces.

I did a lot of acting at school and university, then I went to drama school. It was quite a normal route.