Juke Box Rhythm (1959, U.S.A.)

While in New York to select her coronation wardrobe, Princess Ann is photographed dancing with Riff Manton, son of impoverished producer George Manton. A dress designer, Balenko, gives Riff a large commission when Princess Ann buys her wardrobe from him and Riff uses the money to help his father produce a hit show, a Juke Box Jamboree.