Release Message:  According to an implied, subtle back story, Robby the Robot from Forbidden Planet (set in the 23rd century) is brought back to the film's mid-20th century era by time travel. Starring Richard Eyer as Timmie.

Description:  Ten-year-old Timmie Merinoe (Eyer) seems only to want a playmate. After he is mysteriously invested with superior intelligence, he reassembles a robot that his father and other scientists had been ready to discard as unrepairable junk. No one pays much attention to the robot, named Robby, after Timmie gets it operating again, until Timmie's mother becomes angry when her son is taken aloft by a huge powered kite that Robby has built at Timmie's urging. According to an implied, subtle back story in The Invisible Boy, the robot is the same character as that in Forbidden Planet, which is set in the 23rd century; Robby is brought back to the film's mid-20th century era by time travel.