Santa Claus Conquers the Martians (1964)

Martian ruler Kimar (Leonard Hicks) is upset that the children of Mars are lazy and under the influence of too much pop culture from Earth. They are obsessed with the planet's television programs and don't want to do much of anything. In an attempt to get the kids peppy again, Kimar orders the kidnapping of Santa Claus (John Call), hoping that the jolly old toymaker will know how to cheer the children up again. But two Earth children are also nabbed, and this complicates things for Kimar.