Produced by the Nazis in honor of the 150th anniversary of Mozart's death: a celebration of his music, as the film shows him traveling to Prague for the Don Giovanni premiere and inspired by his wife to compose the finale.

Hannes Stelzer
as Wolfgang Amadeus Mozart

Christl Mardayn
as Mozarts Frau Constanze

Heli Finkenzeller
as Komtess Eugenie

Gustav Waldau
as Graf Schinzberg

Kurt Meisel
as Max

Axel von Ambesser
as Baron Eugen

Max Gülstorff
as Onkel Leopold

Annie Rosar
as Tante Ludmilla

Erna Berger
as Sängerin

Julius Brandt
as Kapellmeister in Prag