There is good science fiction, and there is bad science fiction. Elysium is the bad kind. Don’t bother.
Elysium is the sort of film that just doesn’t quite sit right with you while you’re watching it–for all the obvious reasons when in the moment–and then later on, as you’ve taken the time to properly digest it, you come to realize that there isn’t really a shred of story that holds together on any level. It’s not necessarily offensive viewing, but the entire concept is broken on so many layers that it’s impossible to be kind about it in any kind of objective analysis.
Brief example: a huge plot point hinges upon the fact that Jodie Foster’s repulsive and laughably over-the-top character can (essentially, single-handedly) stage a coup on the presidency of Elysium (which is the luxurious space station/colony to which all of the rich people flee when Earth becomes a total craphole) by simply rebooting the central computer and basically updating a database that will specify her as grand leader.
…and then there’s everything else. Sorry, Neill Blomkamp (director of Elysium)–I’m not sure where everything went wrong, but it clearly did. I’ve heard good things about District 9, but now I don’t know…