Diễn Viên:Roddy McDowall Kim Hunter Bradford Dillman Natalie Trundy Eric Braeden William Windom Sal Mineo Albert Salmi Jason Evers John Randolph
Đạo Diễn:Don Taylor
Nội dung phim: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.