The World of Henry Orient (1964)

Henry Orient is a madly egocentric and overly amorous avant-garde concert pianist who is hilariously pursued all around New York City by two 14-year-old fans. The girls, Val and Gil chase a harassed Henry all over the city, thwarting his afternoon liaisons with a married woman and leaving utter chaos behind them - until Val's sexually promiscuous mother appears on the scene to put a stop to the girls' shenanigans.