With a horror movie most of the actual jumps and scares are made in the edit. It's often not very scary on set and then you watch the film and suddenly it's very scary because the way the jump scares fit together building up the suspense in the audience because it's making them jump when they're least expecting it.

You can be the best actor in the world, but if you don't have that one lucky moment, it kind of doesn't matter. There are a lot of amazing actors who will never get the chance to prove themselves because they won't have that one lucky moment.

The only mistake guys can make is to try too hard with their appearance. There's something very unmanly about it.

I've been very reluctant on the Twitter front. But I do Instagram now, so I'm slowly coming around. I'm quite a private person, so much of what I do for my job means that I have to be quite public so I'm just nervous about everything being public. I might turn around. Three years ago, I was against all social media but I actually really enjoy Instagram now. Who knows? I never say never!

I'd love to get fat on camera. Wouldn't that be great? I'll tell you what's almost as hard though, getting bulked up, getting that big. Here we are in LA and you see guys walking down the street and everyone looks like Arnold Schwarzenegger. That's really quite grim, if you haven't done it before.

I'm not scared of animals, except for rats. I'll break down in tears if I see a rat!

I spend a lot of time in L.A., and I think it would probably be easier if I lived there work wise, but there's no city like London, there is so much going on. I can jump on the Tube and be anywhere in 20 minutes, and all my friends and family are here and I'm not prepared to give that up.