Cinderella (1950 film) overhears Cinderella humming the waltz played at the ball. Realizing that Cinderella is the mysterious girl, Lady Tremaine locks her in her attic bedroom. Later, the Duke arrives at the château, and Jaq and Gus steal the key from Lady Tremaine's dress pocket and take it up to the attic as Anastasia and Drizella unsuccessfully try on the slipper. Lady Tremaine's cat, Lucifer, ambushes the mice, but Bruno chases him out of the house, allowing the mice to free Cinderella. As the Duke is about to leave, Cinderella appears and asks to try on the slipper. Knowing it will fit,
Gus (1976 film) the only one of their five films together where Don Knotts and Tim Conway do not share any scenes. Johnny Unitas appears as a commentator with Bob Crane (in his last feature film appearance) supplying the play-by-play during the football broadcasts. Dick Enberg did the play-by-play for the local games. The name "Hank Cooper" was used in the 1997 Disney film "The Love Bug" as the name of the mechanic (Bruce Campbell) who meets Herbie. In "Herbie Goes Bananas" (1980), a partygoer wearing an Atoms jersey is briefly seen during a masquerade ball scene. "Gus" would be the final feature