The negative about acting is that you have to spend a great deal of time away from your friends and loved ones.

Have you seen Cowspiracy? It takes a lot more land to feed a meat eater than to feed a vegan or a vegetarian. It's something I'd love to get into but it's very hard to persuade people to stop things they've been doing for a long time. So maybe it needs to start with the next generation. Everyone needs to raise their children with a bit more responsibility.

With our job, you often meet people through work. I've had two long-term relationships, from 14 to 18 and 19 to 21. One I met at school and the other I met on a job so who knows where I'll meet the next person.

Ultimately I'll probably end up going out with an actress again. But an architect would be cool. They need to do something creative. I'm attracted to talent. But it would maybe be healthier if it wasn't in the industry.

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.

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.

Some people can very easily switch off and be guilt free, not that what I'm doing is about guilt, but they can completely disconnect and not care because it doesn't affect them. I've always really cared about what happens and felt a certain responsibility.