The film "Amen." examines the links between the Vatican and Nazi Germany. The central character is Kurt Gerstein, a member of the Institute for Hygiene of the Waffen-SS who is horrified by what he sees in the death camps. Moreover, he is shocked to learn that the process he used to purify water for his troops, by using zyklon, served as a basis to kill people in gas chambers.Amen. featuring Ulrich Tukur and Mathieu Kassovitz is streaming with subscription on SundanceNow Doc Club, streaming with subscription on SundanceNow Doc Club (Via Prime Video), available for rent or purchase on iTunes, and 4 others. It's a biography and crime movie with a better than average Rotten Tomatoes (critics) score of 67% and a better than average IMDb audience rating of 7.3 (12,345 votes).