You are spending millions and millions of dollars of other peoples money when you make a movie. You have to at least approach it in a way where you can see how you can make that money back for the people who are investing.

My biggest difference with our film and those kinds of science fiction films is that they are going from one special effect set piece to the next, what we were doing was more of a character study. And I think that is the freedom that you get by doing an Indie film. You can only really do that with a lower budget. So I understand where the conflict is between those two priorities.

When we first made this whole idea this was going to be calling card film [Moon] and it was going to give the opportunity to make my first feature film. But it turned out a lot better, we just couldn't stop ourselves from going into it, and we are very proud that it turned into something that people wanted to see.

Every time you want to reset your set and pull walls out and reset the lighting, you're burning up half an hour to an hour, and when you're trying to keep to a schedule, you're constantly having to reassess what's worth it and what you're going to have to give up in order to keep on schedule.

I think I was brought up with games and I don't think that they're just Pac-Man or Space Invaders. I think we've moved on, I think that there are stories being told and worlds being explored.

In my opinion, having worked in the games industry and still keeping in touch with a lot of those guys, there was definitely a time when they saw themselves as the little brother of the film industry. But they kind of went off in a different direction and now see themselves, I think, as being far more interesting and ahead of the film industry. They haven't just caught up. They've gone off in a different direction and exceeded the film industry.

The films that I loved growing up were the science fiction films from the late seventies and early eighties [films], which were more about the people and how they are affected by the environments that they are in. Whether they are sort of futuristic or alien of whatever they are; that was the science fiction that I loved. So that is what we tried to make, the sort of film that felt like those old films.