This post-war US documentary gives a very graphic account of the Nazi camps (with some inaccuracies). The film, which uses footage shot after the Allied liberation, was watched in Germany in 1946 by well over one million viewers. As part of the Allied “re-education” effort, the film stressed the collective responsibility of ordinary Germans for Nazi crimes. Many German viewers felt ashamed after watching the film. Others, however, dismissed it as Allied propaganda.
Source: Steven Spielberg Film and Video Archive, United States Holocaust Memorial Museum