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.

If you make a movie in the UK you've got to embrace the weather with open arms... We got some of the most amazing weather as well. It's maybe why some of these places, like the Lake District, don't get filmed in so much. If you were trying to make it look like some kind of chocolate box image of England you'd be there all year waiting for the sun to come out.

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.

There's no way you can shoot low-budget stuff on lots of locations. It's just a practicality thing because every time you move, it costs time and money.

I genuinely try to make movies I'd want to go and see, movies that are a bit more challenging.

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

You can muscle your way to the top as long as you're part of the production, which I am. I'm knitted into the money, so it's very hard to extricate me from the decision-making dynamic.