'District 9' was a singular anti-Apartheid metaphor, and 'Elysium' is a more general metaphor about immigration and how the First World and Third World meet. But the thing that I like the most about the metaphor is that it can be scaled to suit almost any scenario.

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 the population curve is on an exponential growth, and the resources are on an exponential decline, what happens first is you get increases in wealth discrepancy, which means that you get rich pockets of gated communities with security guards outside them, and you get more and more poverty outside that area.

My own standards that I'll hold myself to is if the product that I'm making feels honest and it feels like I didn't compromise and it just came from an honest, correct place.

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.

High-level actors can be all about their close-ups and the size of their trailers. I'd heard these horror stories of how a really powerful actor can come in and change your script.

I think people are destined for something incredible if we don't wipe ourselves out, but I think we're going to wipe 90 percent of ourselves out.