It was interesting to listen to Mr. Mankiewicz's remarks following the closing credits of The Mortal Storm. He notes that the country "Germany" was never actually mentioned in the movie.
However, the film begins with titles describing the location: " A small university town at the foot of the Alps in southern Germany." So it may not be mentioned verbally, but the location is identified at the outset. Notwithstanding, the film is replete with the name Adolf Hitler and the swastika abounds on brown-shirted armbands. Additonally, if you are crossing an Alpine pass to Innsbruck in Austria