Planet of the Apes 1968

"This is Commander Taylor, Astronaut. He has landed in a world where Apes are the rulers and Man the beast. Now he is caged, tortured, risks mutilation. Because no human can remain human on the Planet of the Apes."

An astronaut crew crash lands on a planet in the distant future where intelligent talking apes are the dominant species, and humans are the oppressed and enslaved.