Factual error: At the end, When the Jews are in the gas chamber, Zyklon B is dropped in through a vent at the top. While this is correct and represents the method used by the SS, the results are not. In the film it is depicted that the victims are dead within minutes. While this is true to a degree, the actual effects took 15-20 minutes to actually kill. Yes some of the more infirm people will have died quickly but the entire chamber would not have died that quickly.
Add timeA Demon
Factual error: The senior SS officer visiting the commandant (and later at the funeral) is wearing two oak leaves and a pip on his collar patches. This rank badge didn't exist. Two oak leaves (without a pip) were worn by an Oberführer and three oak leaves with a pip by a Gruppenführer.