What’s the worst Christmas movie ever made? Pop culture expert Kevin Maher says that title may belong to “Santa Claus Conquers the Martians,” a 1964 science fiction film. “It’s terrible acting and terrible sets and cheap costumes and ugly color schemes,” Maher told InsideEdition.com. But still, he said, “It’s a lot of fun.” It’s an example of how something can be good and bad at the same time. “If people say it's a bad movie and you enjoy it, just go for it. Enjoy it,” said Maher.