In terms of my relationships with a lot of the adult characters, when I was working with Harrison, it wasn't like a verbal agreement, but we both understood that because there was this constant tension between our characters, we couldn't say "Cut" and start acting normal. We had to keep an essence of that relationship in our characters off screen which is really important.

The most exciting thing in England is a pigeon or foxes, which isn't very interesting to watch because everyone knows what they do. But I've taken pictures of them. Just for practice.

For me, with any character, there are different ways that you approach understanding him, and in this film in particular, because I had the novel to refer to. It's always really helpful to have all of that information and all of those hundreds more words which give you an idea into the background and your character and all.

I don't really have any dream roles. It's just things, which come up.

Some advice to you guys, don't ever take keep your phone in your pocket whilst on a roller coaster.

I can clap really fast. I can beatbox. I can type the alphabet in under 2 seconds. That's probably the one I'm most proud of.

I do photography and I studied film at school. So I've always really enjoyed that and I've got an eye for camera angles I guess. I've never taken that into filming wildlife.