I think Ed Harris is a conscious screen actor, so I think it was strong, it was like he put everything together somehow in 'The Way Back'. He likes, I don't want to say the method approach, because that's not really necessarily his way of working, but it was easy to do because of the location. He'd go off by himself, and they would make things.

Movies tie things up in an arbitrary length of time, but I have always liked things that aren't fully realised.

Anybody I'd spoken to who'd been in Siberia said 'would you please put mosquitos in your film,' that's what everybody knows about, they're big and they're nasty.

I always thought the editor should cut the film and so I'll come in and look at the movie. Just because that's the only way I can really see the ideas of the editor, it's really working together. Yes it's a hierarchy, yes I'm the boss, but I like to see and to think about the idea, and it's about us asking, 'do we have to say that?' and, 'how do we make it there?' So it's advising the editor, it's very give and take, it's very free, but in the end, it's wonderful once you get through the first couple of cuts.

Casting is always critical but in this case, 'The Way Back', I was looking internationally to a degree for an interesting mix of gentlemen, Irish, Polish, Russian and American. Not many people had the qualifications, people who would play the game, particular to this industry. So I had to research amongst the cast. They had to be very very prepared as we had to start shooting as soon as we could, there wasn't any time to talk, and there would only be three or four takes.

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.

I think Ed Harris is a conscious screen actor, so I think it was strong, it was like he put everything together somehow in 'The Way Back'. He likes, I don't want to say the method approach, because that's not really necessarily his way of working, but it was easy to do because of the location. He'd go off by himself, and they would make things.