NMiss Maurice said that "Sureté du Quebec" (Quebec provincial police) arrested the Canadian Nazi Adrien Arcand in 1940. Sureté Quebec was established in 1968, before that it was called "Sureté Provinciale".
Miss Maurice says Adrien Arcand was a teacher at the "Universite of Lachute" in Quebec. Lachute is a small village that has never had a university.
In Canada, 12th Grade is called "Grade 12." The movie uses U.S. terminology.
When Adrien Arcand reveals his final solution, the label says "Le solution finale" Arcand is a French-Canadian, so he should knows that solution is a feminine word, and it should be "La solution finale."