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.

I don't think I've reached perfection by any stretch of the imagination, but maybe someday I'll become a perfectionist.

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

I wanted to become an actor. I went to Guildhall School of Music and Drama, which is one of the main drama schools in London where you go when you are older. But I was doing the junior one when I was a kid. And some friends there had agents. I was fourteen and I was like, "I want an agent! It sounds awesome!" I had no idea what that was. I thought those guys looked like men in black. They were hanging around in suits all the time. So I luckily got a very good agent in London and started auditioning. And then when I was 16, I got my first film and I've been working ever since.

If you don't practice for three days, everyone will notice." It's something you have to really maintain. So unfortunately, I don't play it that often but I may take it up again. If you don't play for a while, you just can't hit the notes. It's like going to the gym. If you go and do weights, you can lift x amount of weight and if you don't go for ages, you've gotta start again and start from the beginning. So it's a bit like that. It's just a muscle.

It's really important to take time for yourself because if you don't know what it is like to be a real person and spend time with a sense of normality, how can you play normal people in films?

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.