Alive in Joburg (2005) is a sci-fi short film directed by Neill Blomkamp. It was filmed in Johannesburg, South Africa, and over the course of its six minute running time, explores apartheid. The visual effects are nifty, and the faux-documentary approach adds another an interesting twist.
The coolest thing about it, however, is that it served as the basis for Blomkamp’s 2009 feature film District 9 – which is quite simply one of the greatest sci-fi movies ever made. You can watch the official trailer here.