Astronauts crash land on a planet where apes are masters and humans are merely brute animals. Superior science fiction with sociological implications marred only by unnecessary humor. Heston delivers one of his more plausible performances. Superb ape makeup creates realistic pseudo-simians of McDowall, Hunter, Evans, Whitmore, and Daly. Adapted from Pierre Boulle's novel "Monkey Planet." Followed by four sequels and two TV series.