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.

I actually think Johannesburg represents the future. My version of what I think the world is going to become looks like Johannesburg.

I had artists that refused to work on Chappie if they were working on a design that actually said Denel on the side of the thing. But anyway, it's the blurring of fiction and reality that was appealing and I certainly did not want them to be in the movie and not be themselves.

There's a lot of evidence in evolutionary sciences that show that altruism and acting in ways that are empathetic to others are actually beneficial on an evolutionary basis.

I love the idea of people being themselves in films.

A lot of parts of L.A. are interchangeable with suburbs in Joburg. Very big, ostentatious houses with palm trees and lawns. Lawns are very important. Never underestimate lawns.