Planet of the Apes (2001)

This remake of the 1960s camp classic starring Charlton Heston (who makes an appearance here) is anything but monkey business.

After flying through a space "worm hole," astronaut Mark Wahlberg crashes on a planet where simians rule over humans. Aided and abetted by a sympathetic chimpanzee (Helena Bonham Carter), Wahlberg leads a small band of rebels against their captors.

In the year 2029, aboard the United States Air Force space station Oberon, Leo Davidson works closely with primates who are trained for space missions. His favorite simian co-worker is a chimpanzee named Pericles. With a fatal electromagnetic storm approaching the station, a small space pod piloted by Pericles is used to probe the storm. Pericles' pod heads into the storm and disappears. Against his commanding officer's orders, Leo takes a second pod and goes in pursuit of Pericles. Entering the storm, Leo loses contact with the Oberon and crashes on a planet in the year 3002. He discovers that the world is ruled by humanoid apes who can speak human language and treat human beings as slaves.

The finale's a doozy.