Cillian Murphy

I loved living in London in my 20s and 30s, but after a while, you kind of go, 'Right, is this it? Is this it for the rest of my days? Or is there some other possibility?'

Nearly everyone says New York is their number one city in the world, don't they? It certainly is mine. But I feel like the ship sailed for me in terms of living in New York because I think you need to live there when you're in your 20s - when you can be poor and energetic and just don't care.

For me, it's about being at home and living a life. Taking the dog for a walk, doing the shopping, emptying the dishwasher, going for a run.

There's a lot of comedy in Intermission but it's got this depth. It's not comedy for comedy's sake - it's informed by something else. I like stuff like that.

After kids, the desire to improve as an actor remains, but time becomes hugely important. I want to do good work and do it well but then be at home. I love hanging out with my children, seeing how they behave, and stealing ideas off them. You can't do that if you're in a hotel, on a plane, or a film set. It's not real life.

I know I am old-fashioned, but I don't want to bring out a fashion line, I don't want to bring out an album. I just want to do the work as best as I can, and if that effects change for somebody, then that is great. I don't want to change the world.

That time, making 'Disco Pigs,' was kind of the most important period of my life. The people I met there remain my closest friends.

I had a really good time in my 20s and 30s.

It's obvious that if you're going to play a character you need to amass information about that person and about their environment or their era that they're in and use as little or as much as necessary.

I enjoy all aspects of it, I don't have a preference for any medium. I think each of them has its attractions and I would hope they each inform the other in some way.

I've always been an actor who works in every medium - I've worked in theater and film and television - I've never seen any difference between the three.