Proving that sequels rarely measure up, Son of Flubber reunites cast, director (Robert Stevenson), studio (Disney), and concept (an eccentric inventor, played by Fred MacMurray, makes odd products with hilarious side effects), and still isn't as good as its predecessor, The Absent Minded Professor. MacMurray and company turn their attention to some new inventions, including flubber gas and dry rain, and while there's plenty of comedy to be had, the film is finally spotty and wears out its welcome. On the plus side, Paul Lynde is a funny addition to this follow-up. --Tom Keogh