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.

My favourite stuff is visual, and I always want to work with visual artwork. I think it depends on the person, but for me, photographs of an image of something interesting or inspiring is worth a lot more than words to me. I think every concept I've come up with and turned into films or that will be hopefully become a film comes from images first.

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

I've learned more, and I understand the process a bit better now. I can try to see how long I want to take in each aspect of the filmmaking process, and then arrive at around the two-year end mark.

I grew up as an artist. Science fiction allows for design and creatures and guns and all the stuff that I like as well. So I think most of the films I make, I'm sure, will be in that category. But I can also see myself making a film like 'Black Hawk Down,' and I could also totally do horror.

Deleted scenes are like in a middle gray zone. It's like, well, they're deleted because they're not good or you lost the battle and you couldn't put them in the movie.

I don't believe in director's cuts and I also don't really believe in deleted scenes because the movie that is in theaters, that's what the director made.