My mum and dad had worked incredibly hard to afford me an education.

For brain surgeons it's particularly difficult to deal with failure. It was fascinating to learn about that whole world.

It's an interesting arc. You start with a character [Doctor Strange] who's likeable and charming but very arrogant and distant. He's funny but you can see there are massive holes in his life. It's a very painful transition and all that he becomes is tested so quickly and violently.

I feel that TV and film feed off each other well. It's more in the perception of the viewer than it is of the actor.

The guy [Doctor Strange], he's like most of us, he's uncorrupted flesh from the beginning of his life, he's somebody who's not marked with original sin or any kind of crap like that. He's somebody who's come into this world and had experiences that have shaped him to the point that we first meet him. There's always got to be leverage. I think there is some clear explanation of that within this film, but potentially further down the line...for more of that to come out as well.

I've done a bit of live action before but the fight sequences, the wire work and the physical regime were taken to another level [ in Doctor Strange].

What makes a good animated movie is being able to balance adult and knowing in-jokes and also just out and out funny things that make all people laugh. The idea that it's actually something that will appeal to a family, that's the trick.