Ingrid Bergman's only film made in Nazi Germany. It was intended to launch her German career, but she soon realized that in order to be truly successful in Germany at that time, you had to have special ties or belong to the Nazi party. She chose to go back to Sweden straight after the film wrapped.
According to Nicolaus von Below, Adolf Hitler's Luftwaffe adjutant, in his memoirs "At Hitler's Side", Hitler and his entourage watched this film on the evening of September 15th, 1938 (two weeks before its public release in Germany), the same day that British prime minister Neville Chamberlain visited Hitler in his private mountain retreat, Berghof. According to von Below, Hitler didn't like the film and had simply said "nicht gut!" meaning in English: "not good!".
Although a Swede by birth (her father was Swedish), Ingrid Bergman's mother, Friedel Henrietta Adler, was German and of Jewish descent.