I actually wanted to be a jazz musician first. My grandparents introduced me to Louis Armstrong. I loved Louis Armstrong so I took up the trumpet and just did that every day and practiced that.

When I do go to L.A., it is usually for a reason - to meet with a director or something - but I'm always so happy to go back to London.

Often you find actors have big hearts; they're quite emotional people. Talking to actors who date other actors, and talking to people who deal with other actors, they often get emotionally caught up in lots of different things. They often wear their hearts on their sleeves. They feel things quite a lot - often to the nth degree, which I can imagine could make it quite difficult to date some of us. I think it's about having an emotional availability that you can kind of draw on. But I'm also searching for that. I'll be searching for the answer to that question for the rest of my life.

I was lucky enough to get a very good agent at the age of 15, and got my first film when I was 16, so it's been rolling on since then.

One of the biggest things I used to struggle with was about things like going on holiday. Whereas all your friends can talk about something and plan something all year long, I know that I'm probably going to be away and I'm going to miss all of it. If a job comes up, you just can't be there.

The negative about acting is that you have to spend a great deal of time away from your friends and loved ones, but it's not like working a 9-5 job and only having two or three weeks off a year. I may not have seen my girlfriend for two or three months, but then we can spend two or three months together solidly.

I looked pretty crazy but at the time, you don't think anything of it. You think, "I've got an amazing job. I'm working and this is cool." I remember I was being fit to go to a premiere for something at Burberry and Christopher Bailey, who designs the clothes there, saw a picture of me and I looked weird. I had short black hair, hardly any eyebrows, I looked very very thin and he went, "We need to put Douglas in a campaign." So four days later, I was shooting a Burberry campaign because he had seen me looking crazy from the show so that was kind of funny.