Starring: Roddy McDowall, James Naughton, Mark Lenard, Ron Harper
Continuity mistake: While Farrow tries to distract the gorilla guarding the spaceship, the gorilla's rifle changes position from down to up and back down.
Continuity mistake: When Dr. Zaius and the gorilla soldiers ride up to the crashed spaceship, his hair is mussed in the long shots and properly groomed and neat in the close ups.
Urko: These humans are dangerous, don't you understand that? They think that they're as good as we are.
Trivia: The Planet of the Apes TV series was filming in the same California hills the same time as M*A*S*H. Both shows were merely one hill away and over from the other.