Watch the trailer. Then watch the short film. This looks amazing. I feel like they take a social issue and put a new spin on it, which feels very realistic.
District 9 Trailer (HD)
Alive in Joberg by Neill Blomkamp Spyfilms (Halo director)
District 9 is based on Alive in Joburg, a short film directed by Neill Blomkamp, Sharlto Copley, Simon Hansen and Shanon Worley. Copley also portrayed one of the interviewed policemen. The short film is about aliens landing in South Africa and becoming contained to a specific area and forced to work. In the movie these aliens are called "Non-Humans" and are overseen by Multi-National United (MNU), a company which is utilizing alien technology.
District 9 -- Wikipedia