Marlene Dietrich shot at Babelsberg film studios. Josef von Sternberg directed the film and thereafter took credit for having "discovered" Dietrich. The film is also noteworthy for having introduced Dietrich's signature song "Falling in Love Again", which she recorded for Electrola and later made further recordings in the 1930s for Polydor and Decca Records. In 1930, on the strength of "The Blue Angel's" international success, and with encouragement and promotion from Josef von Sternberg, who was already established in Hollywood, Dietrich moved to the United States under contract to Paramount Pictures, the US film distributor of "The Blue Angel". The studio sought
Marlene Dietrich Crawford, Mae West, Katharine Hepburn, Norma Shearer, Dolores del Río and Fred Astaire among others. While she was in London, officials of the Nazi Party approached Dietrich and offered her lucrative contracts, should she agree to return to Germany as a foremost film star in the Third Reich. She refused their offers and applied for US citizenship in 1937. She returned to Paramount to make "Angel" (1937), another romantic comedy directed by Ernst Lubitsch; the film was poorly received, leading Paramount to buy out the remainder of Dietrich's contract. In 1939, with encouragement from Josef von Sternberg, she accepted producer