Always changing genres, making very different films is a good idea. It's a way of making yourself feel vulnerable again, getting back to that innocence. As is working within a circumspect budget.

I grew up in a city, I'm a city person - I go on holiday and I'm bored.

Normally, I'm a very controlling director. Directors are controlling. It's part of the job, but there's various degrees of it and the constructs I normally work on are very controlling constructs.

I always say to anybody who's going over to America for the first time, 'Whatever you do, go and see a popular mainstream film with a big audience.' Because people shout out. You never get that in Britain. Everybody's so quiet, scared to laugh. It's like being in church.

You can do anything you like - really - but this Sci-Fi is absolutely disciplined, it's Zen, you have to be absolutely focused in an area. You have to zone into an area and you then you can achieve when you get there. It's really weird!

I've always wanted to do a space movie.

I'm always after putting people in extreme circumstances. I'm always after not knowing what I'm doing in those extreme circumstances.