Who did Jannings collaborate with on The Blue Angel?
F. W. Murnau and Josef von Sternberg
Fritz Lang and Billy Wilder
Ernst Lubitsch and Leni Riefenstahl
Robert Wiene and G. W. Pabst
Answer
Josef von Sternberg directed Jannings in the 1930 film The Blue Angel, not F. W. Murnau. Murnau had collaborated with Jannings on the 1924 film The Last Laugh, but he passed away in 1931, before The Blue Angel was produced.
Emil Jannings Brain Battle: 14 Questions to Win the War