Director
Don TaylorStarring actors
Roddy McDowall
Kim Hunter
Bradford Dillman
Natalie Trundy
Eric Braeden
William Windom
Sal Mineo
Albert Salmi
Jason Evers
John RandolphDescription
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...