Z.P.G. (1972)
Z.P.G. (short for "Zero Population Growth") is a 1972 British dystopian science fiction film starring Oliver Reed and Geraldine Chaplin and directed by Michael Campus. It is based on Paul R. Ehrlich's best-selling book The Population Bomb. The film concerns an overpopulated, very polluted future Earth, whose world government executes those who violate a 30-year ban on having children. A British production filmed in Denmark, the film is almost entirely set-bound featuring art direction designed to reflect a bleak, oppressive future.
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