When Eichmann is in Beck's office, his coffee cup suddenly changes from sitting on the desk to being in his hands.
In a scene set in the early months of 1942, Slote suggests to his boss Tuttle and to van Winnaker that "the Germans are committing mass murder, perhaps genocide, under the cover of war." However, the word "genocide" was not coined until 1944, and did not enter wide usage until a couple of years after that.
Sammy Mutterperl looks far too well fed and in good health to be a concentration camp prisoner. A concentration camp inmate like Mutterperl, who has been in the camp system for years, would not be as heavy and filled out as actor John Rhys-Davies. even with extra food and better treatment as a Kapo.