I don't want to make a film that offends people, but the whole world is so politically correct - I'm not going to not do something because it may be politically incorrect. At some point, the metaphors and allegories break down. They disappear, and you just have science fiction.

There's no question that how Johannesburg operates is what made me interested in the idea of wealth discrepancy. 'Elysium' could be a metaphor for just Jo'burg, but it's also a metaphor for the Third World and the First World. And in science fiction, separation of wealth is a really interesting idea to mess with.

'Chappie' would be like 'RoboCop,' but hilarious. If you mixed 'Robocop' with 'E.T.' and it was... funny, that's what it is.

When I was in my early 20s, I was quite into Japanese animation. It's like the same thing that I end up always saying which is, imagery based stuff is the thing that really gets me.

If you look at the most meaningful science fiction, it didn't come from watching other films. We seem to be in a place now where filmmakers make films based on other films because that's where the stimuli and influence comes from.

There has to be the popcorn genre element, or I don't engage the same way. I like action and vehicle design and guns and computer graphics as much as I like allegory. It's a constant balancing game. I want audiences to be on this rollercoaster that fits the Hollywood mould, but I also want them to absorb my observations.

If you don't have something that glues the audience to the screen, you're in trouble.