This bachelor thesis discusses the personality of Heinrich Mann and the period in which the writer lived. The main goal is to compare the original satirical novel Professor Unrat with its film adaptation, Blue Angel. The conclusion is that the film changed the original intention of the author to a certain extent. Individual chapters also focus on the director of the film of the book, Josef von Sternberg, and the leading actors. It also deals with the contemporary 1930s film critic and the importance of the music in one of the first films with sound.
