Son of Flubber is a 1963 American science fiction comedy film directed by Robert Stevenson and produced by Walt Disney Productions.

Fred MacMurray reprises his role from the previous film as Ned Brainard, 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.

This places Brainard on the lam from Alonzo P. Hawk, who is planning to close Medfield College, and whose insurance company must pay the claims for the broken glass.

[3] Medfield College, which was also the setting for the earlier film The Absent-Minded Professor, was later used for Disney's Dexter Riley trilogy: The Computer Wore Tennis Shoes (1969), Now You See Him, Now You Don't (1972), and The Strongest Man in the World (1975), with all three starring Kurt Russell and Cesar Romero.

[6] Bosley Crowther of The New York Times wrote: "It is crazy, of course, in the spirit of old-fashioned sight-gag slapstick farce, but it is fun—and, indeed, a bit of a satire on the weird inventions of the new atomic age.

"[8] Philip K. Scheuer of the Los Angeles Times wrote: "Since I had no laugh-o-meter handy I was unable to clock the yocks but I am sure 'Son of Flubber' will hold its own against The Absent-Minded Professor and Bon Voyage.

But the slapstick is generally as inventive as before, taking in a delightful spoof commercial for flubber and some excellent special effects when Professor Brainard launches his home-made clouds and his flubberised football player.