Soylent Green (1973)
Soylent Green is a 1973 American science fiction film directed by Richard Fleischer and starring Charlton Heston, Leigh Taylor-Young, and, in his final film, Edward G. Robinson. The film combines the police procedural and science fiction genres, depicting the investigation into the murder of a wealthy businessman in a dystopian future suffering from pollution, overpopulation, depleted resources, poverty, dying oceans, and a hot climate due to the greenhouse effect. Much of the population survives on processed food rations, including "soylent green".
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