Bart's arch nemesis is his piano teacher Dr. Terwilliker who plans to force 500 boys to practise piano for 24 hours a day. Bart is determined to save the boys from enslavement.
- Roy Rowland
- Peter Lind Hayes, Mary Healy, Hans Conried, Tommy Rettig, John Heasley, Robert Heasley, Noel Cravat
- 89 min