The Monkey's Uncle is a 1965 American comedy film starring Tommy Kirk as genius college student Merlin Jones and Annette Funicello (former Mouseketeer from The Mickey Mouse Club) as his girlfriend, Jennifer. The title plays on the idiom "monkey's uncle" and refers to a chimpanzee named Stanley, Merlin's legal "nephew" (because of a legal arrangement resulting from an experiment to raise Stanley as a human) who otherwise has little relevance to the plot. Jones invents a man-powered airplane and a sleep-learning system. The film is a sequel to 1964's The Misadventures of Merlin Jones. Plot The film starts in court, where Merlin Jones legally adopts his monkey, Stanley. Midvale College is told that a wealthy man, Mr. Astorbilt, will give a large donation, but he has a strange request—he challenges the school to build a man-powered flying machine. If they succeed by a certain date, they get the donation, otherwise it will go to a rival school. Jones designs a lightweight airplane, powered by a propeller driven by bicycle pedals. Recognizing that even his football-jock friends won't be strong enough for such a feat, he develops a strength elixir (based on adrenaline), which should give the power that a man would need to get off the ground. To get the jocks' support, he creates "an honest way to cheat", adapting the recently discovered sleep-learning method to help them pass a particularly hard history course. Once the jocks are asleep, a timer starts a phonograph player, with the sound of Merlin's girlfriend, Jennifer, reading their lessons to them. However, this backfires in class—asked to give an oral report, the jocks speak, but Jennifer's voice comes out. It eventually works out in the students' favor. Jones gets the jocks' help, and the great day comes. The pilot drinks the elixir, then pedals off into the sky, winning the contest, but the "wealthy donor" is last seen fleeing from men in white coats, who want to take him back to the local mental hospital. Principal cast Tommy Kirk as Merlin Jones Annette Funicello as Jennifer Leon Ames as Judge Holmsby Arthur O'Connell as Darius Green III Frank Faylen as Mr. Dearborne Leon Tyler as Leon Norm Grabowski as Norman Cheryl Miller as Lisa Connie Gilchrist as Mrs. Gossett Alan Hewitt as Professor Shattuck Gage Clarke as College President Mark Goddard as Haywood Harry Holcombe as Regent Alexander Lockwood as Regent Harry Antrim as