I played lots of games and I was a fan of gaming, so I was always looking for new games.

Obviously, there's a big homage to Outland in Moon. I obviously had Ridley Scott's response, which was great. But Peter Hyams really loved Moon and was really enthusiastic about it. He was also enthusiastic about the fact we'd remembered Outland and had remembered it fondly. I think, for him, it was like some kind of edification that there were people out there who loved his film. So, that was a really lovely feeling.

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.

You have to be flexible enough to realize that, over the course of making a film for three and a half years, things are going to slightly change and drift, as you work out solutions to each problem as they come up.

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.

As soon as I finished film school I was thinking about, how do I get to feature films? It took about eight years, and I'm still working. Feature films was not the end goal. Feature films was one of the stages. Getting to the point of the Coen brothers or Tarantino, where you're writing your own material and have the budget to do it properly, that's the end goal, and I'm close to that.

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.