My favorite Sci-fi movie is District 9;
Not since Brother from Another Planet has a science fiction movie dealt so openly and efectively with the problems that humans create by dividing themselves up along lines of race and class.
When a giant spaceship parks over Johannesburg, explorers are told to find that it`s full of thousands of diseased, helpless aliens, who are now under the care of the South African government inside a determined territory beneath the spaceship. Wikus is a bureacrat put in charge of relocating the "prawn" from their town to a new refugee camp, and that`s when trouble begins. A type of alien liquid spread all over Wikus and thats when the movie climax starts to grow. A dark satire with incredible effects and a gut-punching story, District 9 manages the impossible treatment between two races, it is a political allegory that feels like an action movie.