. . . "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 inspired by the non-fiction best-selling book The Population Bomb by Paul R. Ehrlich. The film concerns an overpopulated, very polluted future Earth, whose world government executes those who violate a 30-year ban on having children."@en . "5820.0"^^ . . . "0069530" . . . . "Z.P.G."@en . . . .