I enjoyed Jonathan Franzen's 'Freedom.' Would I make that into a film? I think it's better suited to television. That would very much be a dialogue and performance piece, and it would take some very skilful direction - but not my kind of directing. But I thought it was a real literary work.

I loved Sherlock Holmes as a kid, but I remember being disappointed when he'd come up with these simple explanations for these complex mysteries.

Sixty-five days principle photography, five-day weeks, which is the only way I'll work. With my cinematographer Russell Boyd, we take as much time as possible before pre-production, looking at stills. The next most important thing: he will come to me and talk about lenses. And I'll see his plan, which is generally great, and I might talk about how the light will be, handheld or not? I talk very freely, and try not to talk specifically, just talk around it, because it can unlock all sorts of things.

It doesn't take any imagination at all to feel awed

You get very little from the studios anymore, it's all independent. And I think the studio, with the exception of something like The Social Network, a fine film, very interesting, but as for studio pictures, that's it, what else? There was more only a few years ago. So it changes, and I'm trying as much as I can.

I love a chance to shoot real locations, because in films in the earlier days before people traveled as much, it was exotic to see a film set in Switzerland, and that area has been taken over by CGI, mostly, and fantasy landscapes. It's unusual to see this much landscape, people say it's old fashioned. So what you're referring to is there was that period in the '50s and '60s when there were epics and you saw landscape.

I've done a number of things that get categories closed off in a way, so when I read 'The Long Walk' by Slavomir Rawicz and decided to do film, 'I thought, you know, this is going to be wonderful,' two and a half years, three years, whatever it was.