The throng of uncredited teenagers included future actresses and celebrities Melinda Marx (daughter of Groucho Marx), Kim Darby (starred in True Grit), Linda Henning (Betty Jo Bradley in 'Petticoat Junction (1963)'), 'Elaine Joyce' (actress, game show guest star and wife to Bobby Van and Neil Simon) and Melody Patterson (Wrangler Jane on F Troop).
The title tune which opens and closes the film was written for the screen version, and was not from the Tony-winning Broadway musical.
When Harry McAfee (Paul Lynde) pulls into his driveway, it is actually the driveway of the house next door on the old Columbia lot where two years later he was playing Uncle Arthur on the Bewitched series.