A middle-aged instructor at a boys' prep school becomes infatuated with a singer from a sleazy cafe. He is forced to leave his respectable job. He marries the singer and travels with her performing troupe, sinking ever lower. When she leaves him for someone new, he returns to his former school as a broken old man.

German collection. Based on the novel Professor Unrath by Heinrich Mann. "Both the German and an English/German version of The Blue Angel film were filmed at the same time. The English version was destined for the English-speaking territories, but the somewhat hair-raising accents of the actors made the German version the more internationally popular."--Note on disc menu, Disc 2. Both films originally released as motion pictures in 1930.

Disc 1. German version (102 min.) with optional audio commentary by German film historian Werner Sudendorf ; Bonus features: Scene comparison ; Screen test ; Trailer ; Marlene [Dietrich] interview ; Marlene [Dietrich] performances ; Photo gallery ; Facts & dates ; Cast & crew ; DVD credits -- Disc 2. English version (100 min.).