Mom and Dad Save the World (1992)

Director: Greg Beeman
Cast: Dwier Brown, Eric Idle, Jeffrey Jones, Jon Lovitz, Kathy Ireland, Teri Garr, Thalmus Rasulala, Wallace Shawn

Synopsis:

Emperor Spengo sees Marge Nelson and using a giant magnet, kidnaps her and her husband Dick, hoping to make Marge his before blowing up the Earth. The Emperor and other inhabitants of his planet are somewhat less than bright, and Dick begins reliving episodes of Flash Gordon and Buck Rogers in order to rescue Marge, save the Earth, and restore the rightful emperor to the throne.