Kevin Feige said to me: "I don't think we've ever put an actor through quite as much as this, physically and mentally." I'll wear that as a badge of honour. It was endless.

There are moments when, like all of us, you get a bit self-conscious and you'd rather not be living any of your day in public. Those are the awkward times, but you've got to have fun with it.

I thought, well, why am I giving up on my primary dream to work doubly hard, to do something as an alternative to what it really still want to?

I want to do it all. I want to climb mountains, go through jungles, fight wars in space, get the girl, shoot the bad-guy full of lead, have all the zippy one liners, bulge muscles out of a singlet, drip sweat and blood on screen, all of that.

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.

I'll always do 'Sherlock' - it's something I'm not going to give up on.

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