Doing Prometheus was what you imagine being an actor is like when you're five. In a spacesuit, on another planet, getting killed by an alien. It was a real treat, it felt like being a part of movie history.

I was nervous about playing a lead part in a Working Title romantic comedy and I was also nervous about the fact that I not only had to take my clothes off, but get my willy out. There's certain things you can do to make yourself look better, but there's nothing you can do about your willy. Your willy is your willy and no amount of working out is going to make your willy look any different. You get what you're given. But I wanted to look my best and to whip myself into any semblance of handsomeness. And that was hard going.

I'm sure that my father becoming seriously ill when I was 14 had a lot to do with my going from chubby to fat.

My mum and dad have always enjoyed life, and it's something that's been instilled in me. I wake up in a good mood most mornings.

I've done loads of things people have never seen, dramas on BBC4 and plays upstairs at the Royal Court and the Bush, and because I didn't go to drama school, they gave me an education.

One of the biggest gifts you can give a child is confidence, because confidence will take you miles - more than talent, more than anything else. So yes, I want my children to have confidence and to be kind.

I’ve been an actor for 10 years now, and if anything I want to talk more about my dad. He taught me that even if you get past the casting director’s door you’ve still got to do your homework: you’ve still got to work hard.