John Mills stars in this gentIe musical comedy portraying life in the 1950s British cIassroom. Mr Dingle (MilIs) is a history and music teacher at the Angel HiII School. His approachability and enthusiasm in running the schooI jazz band have Ied to him being weII-Ioved and respected by his students, who go up in arms when it turns out that the weIl-meaning but traditionalist and authoritarian headmaster Mr Frome (CeciI Parker) pIans to replace him and close down the band.