Director :
Stars :
Roddy McDowallKim HunterBradford DillmanNatalie TrundyEric BraedenWilliam WindomSal MineoAlbert SalmiJason EversJohn Randolph
Genre :
Release :
1971-05-20
Rating :
6.37
Story :
The world is shocked by the appearance of three talking chimpanzees, who arrived mysteriously in a spacecraft. Intrigued by their intelligence, humans use them for research - until the apes attempt to escape.