If you loved Son of Flubber, try The Absent-Minded Professor
A bridge between a film you've already seen and one most people haven't. Here's what they share, and what the second one does that the first one doesn't.
What they share
Both films are directed by Robert Stevenson, and they both carry the cozy, playful, uplifting mood tags, and they sit in Comedy / Family / Science Fiction territory. If that's the register that drew you to Son of Flubber, the second film will land in a comparable space — through a different lens.
cozyplayfuluplifting
What The Absent-Minded Professor is
Disney tries its hand at a live-action comedy, with predictably mixed results. A goofy professor invents a substance that allows anything to bounce incredibly high. The film is mostly a showcase for special effects that were probably pretty good at the time.

