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Throughout May, Wang Yang had been writing the script and storyboards for "District 9." To design scenes for the third part, "The Extinction of Humanity's Compassion," he immersed himself in the study of violent aesthetics. However, he realized such techniques were mostly suited to battle scenes, while the extinction of compassion required no beauty—only blood, disgust, and unendurable horror that sent shivers down the spine.
He let his mind wander into the devilish depths and researched various forms of torture, atrocities committed by Nazi Germans and the Japanese during World War II. He discovered how truly disgusting and inhumane humans could be, and for the first time, he understood the emotion behind wanting to "exterminate mankind." But aside from conceptualizing scenes of Wikus slaughtering human troops, he also had to depict the brutal human research on aliens.