Originally produced in East Germany as a motion picture and released in 1961.
Extras include biographies and filmographies, PDF files: "The Careers of Professor Mamlock" by Stefan Soldovierl, Friederich Wolf biographical information and images, "Friedrich Wolf: Beyond the Jewish/Communist Divide" by Henning Müller, and movie poster.
Based on the same play by Friedrich Wolf.
Cinematography, Werner Bergmann; music, Hans-Dieter Hosalla; editor, Christa Wernicke; production company, DEFA-Studio für Spielfilme.
In German, with optional English subtitles.