The Blue Angel The Blue Angel The Blue Angel () is a 1930 German tragicomedic film directed by Josef von Sternberg and starring Emil Jannings, Marlene Dietrich and Kurt Gerron. Written by Carl Zuckmayer, Karl Vollmöller and Robert Liebmann – with uncredited contributions by Sternberg – it is based on Heinrich Mann's 1905 novel "Professor Unrat" ("Professor Garbage") and set in Weimar Germany. "The Blue Angel" presents the tragic transformation of a respectable professor to a cabaret clown and his descent into madness. The film is the first feature-length German full-talkie and brought Dietrich international fame. In addition, it introduced her signature song,
Marlene Dietrich huge crowds. During her performances at Berlin's Titania Palast theatre, protesters chanted, "Marlene Go Home!" On the other hand, Dietrich was warmly welcomed by other Germans, including Berlin Mayor Willy Brandt, who was, like Dietrich, an opponent of the Nazis who had lived in exile during their rule. The tour was an artistic triumph, but a financial failure. She was left emotionally drained by the hostility she encountered, and she left convinced never to visit again. East Germany, however, received her well. She also undertook a tour of Israel around the same time, which was well-received; she sang some songs