Great interview with Neil Blomkamp.
“The idea of taking up stone, and mortar, and concrete, and swimming pools – and everything you’d need to build these mansions in a space station – is satire. It just reinforces the central idea of the film – the people of Elysium have unimaginable wealth, and they use those resources to build a separate, synthetic, almost hermetic environment for themselves. In that way, Elysium is the reverse of an alien-invasion story – it’s still about human beings trying to protect a way of life, but instead of fighting for Earth, they do it by going into space.”
Also reviews are coming in, one from Variety, without much spoilage that isn't already in the trailers: http://variety.com/2013/film/revi…