I do enjoy the puzzle-solving aspect of making a movie.

You go through different stages when you're working on the music in film. At least, I do. You have a temp score, so you have music from other people, usually from other movies, to give you a sense of what the mood is supposed to be, what the atmosphere is.

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.

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.

There is this whole level of communication that I think our generation and younger is used to that does have this weird effect on people. It creates a familiarity that is possibly not always justified. I think that's interesting and I think it's nice to be able to incorporate it into films, because most of us can relate to that now.

I've worked really hard to build up a career on my own. I turned 30 recently and it took me a long time to get the chance to make a feature film and do it on my own terms.

For me, two of my favourite science fiction films are Blade Runner, which is fantastic, and Terry Gilliam's Twelve Monkeys. Both of those were smart science fiction films hitting more of a medium budget, and I desperately hope there is an audience for that kind of film because I would love that to be my next film, on that kind of scale.