District 9 uses documentary-style film techniques to tell the story. Medium shots and steady cameras are used in dialogue scenes to emphasize the documentary feel. Extreme long shots provide environmental context, like showing the poor conditions of the area. Lighting creates tension, with soft lighting in offices but low-key lighting in the tense spaceship scenes. Diegetic sounds and lack of music also enhance the realism. The documentary format and positioning of characters speaking to the camera establish the recounting of real events.