It's nice to be part of something that could grow into something else and be there at the beginning of it.

I've always been quite good at watching someone do something and then picking it up, so I turned that talent to watching people on the film set, and just saw how small everything was and how intimate the scenes could be.

I'm an only child. My mum and dad are six in each family. They're both twins, and they only wanted one. I always say to them though that they're lucky - it could have all gone wrong.

I'll tell you a little fun fact about the film, though. Me, the little boy playing Chip, Emma Thompson, and Emma Watson, all have the same birthday. We were all in on the same day and they all sang us "Happy Birthday." That will never happen in my life again: Four of us having the same birthday on the same film, and we're all in on the same day. It was an extraordinary thing.

Look at social media. It's what we do, right?

When I was playing Dracula I had to switch off from the reality and fall into this fantasy world. Otherwise I just couldn't cope with what I was doing. It's about switching off. It is about trying to flick a switch, which you have to do.

In 10 years, I’d love to live near the sea, in a warmer climate. I could see myself with three dogs…and it’d be great to share them with someone else.