American film showing world coming to end: ' District 9 '

The film opens with a documentary-style series of interviews: twenty years prior, an alien ship arrives above Johannesburg, South Africa. It hovers above the city for three months without any contact;Eventually humans cut into the ship. They discover a large group of aliens. The creatures are given permission to live on Earth but are housed in a squalorous government camp.

A MNU field operative named Wikus van der Merwe, is tasked with moving the aliens to a new camp; District 10. In one of the shacks within the camp, an alien named Christopher distills a mysterious black substance in a small black cylinder. While serving and eviction notice to Christopher, Wikus finds the cylinder which squirts it's contents into his face. He becomes instantly nauseous; Wikus returns to his office and grows increasingly ill throughout the day. He returns home that evening and collapses; he is rushed to a hospital where a doctor discovers his left arm has metamorphosed into that of a prawn. MNU scientists decide to harvest his body for biological material. However, during the attempted vivisection Wikus escapes and flees from MNU. He finds refuge in District 9.

After Wikus is again captured by MNU, a battle breaks out. After a protracted firefight, the Nigerians (Whom are also in district 9 camp) capture Wikus. Just before they chop Wikus' arm off, Christopher's son activates several systems in the mothership, including the autopilot routine of a mechanized battle suit; it slaughters the Nigerians. Wikus enters the alien walker battle suit; returns and rescues Christopher then convinces Christopher to return to the shuttle without him. Christopher promises Wikus that he will return in three years to repair his body. Christopher then boards the shuttle and activates a tractor beam which returns the command module to the mother ship.

The film concludes with another series of interviews and news broadcasts. The aliens are successfully moved to District 10, which now has a population of 2.5 million and is growing. There are many differing theories on Wikus' fate; Some people believe he either left on the mother ship, is in hiding or was captured by MNU or a government agency. Some interviewees hypothesize that the aliens are planning to return with a full army and declare war on humanity. An interview with Wikus' wife reveals a small metal rose was left on her doorstep (Wikus has earlier demonstrated his affection with handmade gifts). In the final scene, an alien with a bandaged left arm is shown in a junk yard fashioning a rose out of scrap metal.