Son of Flubber is the 1963 black-and-white sequel to the Walt Disney children's movie comedy The Absent-Minded Professor (1961), also starring Fred MacMurray as a scientist who has perfected a high-bouncing substance, Flubber ("flying rubber") that can levitate an automobile and cause athletes to bounce into the sky. The film co-stars Nancy Olson and Keenan Wynn, and was directed by Robert Stevenson.