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.

I like to travel, but honestly I really like to just be at home in London and spend time with my friends.

I love the challenge of playing characters forced on life-changing emotional journeys. To work on a project with Billy Crudup and Sam Rockwell is just a dream come true.

I got to be about 13 and everyone started playing guitars and being in rock bands. There was no place for me with my trumpet and I wasn't cool anymore. Although now if I played the trumpet it would be the coolest thing in the world.

The script's always important, but there are some things that have come out in the past year that, when we read them, everyone was like, "Oh my god, this is going to be the next best thing!" Then the movie falls completely flat on its face.

I'd love to work with Paul Thomas Anderson or Quentin Tarantino, but these are dreams I don't need to rush to achieve. I'll be ready to make those movies when I'm ready to make those movies and they're ready to make them with me, if they ever want to.

Going over to Lesvos in Greece and meeting some of these poor refugees who have just made the treacherous sea crossing opened my eyes in a way I can't even being to describe. It's put a fire in my belly to really try to do something, the little I can do.