Monitors, The (1969)

An unusual sci-fi invasion film, with a black-comedy twist: Earth is taken over by The Monitors, aliens who run the world like hall monitors in a 1950's high school, with overtones of Big Brother. The film follows the progress of the human underground rebellion. The twist is that as the film goes on, the audience's sympathies shift to the aliens, who are basically benevolent. When the humans manage to oust them, it's back to corruption and bribery by the usual suspects. Stars Guy Stockwell, Susan Oliver and Sherry Jackson.