Wilhelm Bauer - Film About Bauer - Geheimakte W.B.1

In 1941 German director Herbert Selpin directed a biopic about Bauer with the title Geheimakte W.B.1 (Secret file W.B.1; W.B = Wilhelm Bauer)), which was released in 1942. It was a propaganda movie to further the submarine war. The plot was built on the novel Der Eiserne Seehund (The iron seal) from Hans Arthur Thies, published in 1941.