Lots of crime films are about work. Free Fire could have been about a company of plumbers doing pipe-fixing and stuff. But the plumbing film is not so exciting.

The only genre I have any problem with is musicals, but that's just my own tastes it's nothing to do with the films.

I think CGI is interesting but it's too expensive and limiting in terms of what you can do shot-by-shot.

I like that confusion when people are speaking in the same language but still can't understand each other. It's also usually my experience of being in America - when I speak no one can understand what I'm saying.

Doctor Who is pretty dark, I think. Generally its dark; its always been dark.

I think a big part of my job is to make an atmosphere on set and have an attitude that it's about experimentation, and you can't do anything wrong. It's not about judgment, it's not about me kicking over a chair and storming onto set and acting stuff out and telling people to copy what I do. That is a style of directing some people have, but I don't understand it.

I've had pretty much the same crew for all the films that I've made, and I've managed to have really nice, calm, funny people. That is a big part of it, a family feeling of warmth and finding something interesting and making a platform for them to perform. It's a very difficult job, acting, in that it's totally counterintuitive to how we are brought up.