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 play enough other mad people, as well and some sane people, to vary the palette of what's scrabbling around in my head and soul to bring to the floor, as a storyteller.

Actor is an odd profession, and sometimes people get jealous, but I haven't really experienced any of that. Everyone's been really happy for me, which is really, really great.

Doctor Strange is selfish but he's still saving lives.

When auditioning, I try to imagine that I'm the only person that they [directors] are seeing that day because it can be overwhelming, in the same sense that it could be overwhelming if you try to fulfil everyone's expectations rather than the people closest to you in the creative process, be it your director, or fellow actors and the writers. So, that's kind of it - I try to trick myself into believing that no one has ever gone there before.

[Sherlock Holmes] has to understand the world. That's very much John's [Watson] influence on him. But like a lot of the friendships and relationships in that world, it's born out of necessity. It makes him better. There's a pragmatism to it. It's not whimsical or sentimental. It's born out of necessity.

I don't call myself an expert because I've played experts. I know a little bit about very little. But it's very hard to not be drawn into saying something, especially if it has to do with the work.