I was born in Glasgow. But my family is pretty much from a little town called Paisley, famous for its cotton mills and paisley pattern.

When I start a movie, I already feel like I'm in it. I'm not a jobbing actor anymore; most of the films I do, I'm involved with development. Some, I've taken from scratch, and worked so heavily on the script, I'm embodying a lot of the character by the time I even get close to filming, because I've asked so many of the questions that I do. There is nothing better than being able to ask all the questions, do all the work. It's when you let it go that you fly.

I do get stressed at times, but I love what I do as an actor. This is the part that I don't like. I don't actually like talking about - I wish I could just go and get on with my job, because I love getting a script, breaking it down, working with other people, bonding with other people, fighting with other people, and out of those arguments, creating something that nobody expected and seeing it all come together. Telling a story, having an impact on people's lives, moving them and making them laugh.

Choosing the right mask helps you... We went through many masks. It was very particular leather that as soon as you smudged it, you had to get a new one. We went through about 55 masks.

Iceland is 50 percent Celtic blood, from the females that they stole from us, which is why our country has only got dogs left. It was a joke! I'll never be let back in Scotland again!

I always find stuff in my characters to relate to.

I think some parts of the American justice system have gone haywire.