I went to America with a very specific idea of what I wanted to do.

I read every screenplay that was being sent to the other directors. None were being sent to me, but I was reading what others were choosing and what the best writers were writing.

I think that 'Halo' is a hard property because they don't need to make a film. They make far more money out of the games so why risk?

I think you can get away with being a bit more political in science fiction.

We just did the best we could with quite a limited budget, to be honest, and had a lot of success.

Trying to ground everything in reality was the most important thing to me.