《五十年后之世界》 是大卫·巴特勒导演的作品，发行于1930年（美国），由埃尔·布伦德尔,莫琳·奥沙利文,John Garrick,Marjorie White等主演的一部科幻片。
讲述了： 　　airplanes have replaced cars, numbers have replaced names, pills have replaced food, government-arranged marriages have replaced love, and test tube babies have replaced ... well, you get the idea. Scientists revive a man struck by lightning in 1930; he is rechristened "Single O". He is befriended by J-21, who can't marry the girl of his dreams because he isn't "distinguished" enough -- until he is chosen for a 4-month expedition to Mars by a renegade scientist. The Mars J-21, his friend, and stowaway Single O visit is full of scantily clad women doing Busby Berkeley-style dance numbers and worshiping a fat middle-aged man.