- Country: USA
- Genres: Adventure, Drama, Romance
- Release: 1941-06-28
- Director: Vincent Sherman
- Writers: Charles Grayson , Edwin Justus Mayer , Oliver H.P. Garrett
- Language: English | German
- Stars: Jeffrey Lynn , Philip Dorn , Kaaren Verne , Mona Maris , Peter Whitney (I) (1916–1972) , Martin Kosleck , Erwin Kalser , Ilka Grüning , Frank Reicher , Egon Brecher
- Runtime: 95 min
- Awards: N/A
- AKA: Dos hermanos (Mexico) , Frihetsrösten (Sweden) , Underground (United States of America) , Underground (Australia) , A Voz da Liberdade (Brazil) , Morfes tou ypokosmou (Greece) , Підпілля (Ukraine) , La libertad nunca muere (Argentina) , Yli kiellettyjen rajojen (Finland) , Underground (United Kingdom) , Underground , Lucha en la sombra (Spain)
- Plot: A World War II Hollywood propaganda film detailing the dark underside of Nazism and the Third Reich set between two brothers, Kurt and Erik Franken, whom are SS officers in the Nazi party. Kurt learns and exposes the evils of the system to Erik and tries to convince him of the immoral stance that marches under the symbol of the swastika.
- IMDB:tt0034337
Underground Cast · · · ALL
Vincent Sherman
Director
Jeffrey Lynn
Kurt Franken
Philip Dorn
Eric Franken
Kaaren Verne
Sylvia Helmuth
Ludwig Stössel
Gustav Muller
Arthur Tovey
Man at Railroad Station
Mona Maris
Ms. Gessner
Peter Whitney
(I)
(1916–1972)
Alex
Martin Kosleck
Heller
Erwin Kalser
Dr. Franken
Ilka Grüning
Frau Franken
Frank Reicher
Professor Baumer
Egon Brecher
Herr Director
Hans Schumm
Heller's Aide
Wolfgang Zilzer
Hoffman
Roland Varno
Ernst Demmler
Henry Brandon
Rolf
Lotte Palfi Andor
Greta Rolf
Lisa Golm
Ella
Louis V. Arco
Otto
Roland Drew
Gestapo
Louis Adlon
Karl
Lester Allen
Krantz
Rudolph Anders
Official
Edit Angold
Maxel's Cashier
Walter Bonn
Lieutenant