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.

There's nothing so unattractive as vanity... particularly male vanity.

I think one of the main differences between being an English actor and being an American actor is that we have things like the class system in England.I'm middle class. But I've got what some people might consider to be a working-class accent, so you've got those sorts of elements in this country to consider, which, in America, exist, but not necessarily in the same way.

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 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 watched what I ate for a bit and did a bit of exercise. I wanted to look alright because I knew I had to take my clothes off and I knew I was starring alongside some extremely attractive women! I think it was Humphrey Bogart who said that the only reason people found him attractive was because of the attractive women he played opposite. So, as audience member you go: "Well, if she would find him attractive, then surely I must too!" Playing opposite beautiful actress of the calibre of Rose Byrne and Anna Faris is amazing - it does a lot of the work for you.