Flubber An absent-minded professor discovers “flubber,” a rubber-like super-bouncy substance. Runtime: 93 min Released: 26 Nov 1997 Genre:Comedy, Comedy, Family, Sci-Fi IMDB: 5.3 Starring: Robin Williams, Marcia Gay Harden, Christopher McDonald Writer: Samuel W. Taylor, John Hughes, Bill Walsh Director: Les Mayfield Available countries: United States