Amen.
"Two Men, Two Worlds, One Cause"
Kurt Gerstein—a member of the Institute for Hygiene of the Waffen-SS—is horrified by what he sees in the death camps. he is then shocked to learn that the process he used to purify water for his troops by using Zyklon-B, is now used to kill people in gas chambers.
Directors: Costa-Gavras
Writers: Costa-Gavras, Jean-Claude Grumberg, Rolf Hochhuth
Cast
IMDB: tt0280653