Question: Can anybody explain the ending of movie THE PLANET OF APES,2001? 

Answer: Okay.  He landed on counter earth, which is kinda like the opposite of earth.  People are slaves and monkies rule, where as on earth, Humans rule and monkies are slaves.  Due to his actions on counter earth in making the humans the dominant race on that planet, when he went back to earth, things flopped around and he was the minority and the apes were the dominant race.
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