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 do think that it's always okay to show too little. People will still be interested. So why show too much?

I love the idea of people being themselves in films.

I am a firm believer that the pull for human beings is towards the good, generally outweighing the bad.

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 think the world of 'District 9' has a lot of race and oppression-based ideas that I would still like to explore in that world.

I think that 'Elysium' the movie is unrealistic, with the space station and everything. I think 'Elysium' the metaphor is completely realistic: it's exactly where we're going.