The theater group is gathering at a nightclub. Bernard arrives with a female friend but decides to leave again right away. In the wardrobe there is a sign on the wall about not serving drinks after two a.m. It is supposed to be German but full of spelling- and grammatical errors.
After 46' the character Jean-Loup Cottins, acting director of the theater, played by Jean Poiret, speaks with a young boy ; on the wall behind him is seen a wall poster of « Milice Française » (French Milicia a suppletive police which closely worked with its German counterpart, ruthless and feared by population) ; action taking place in September of 1942 it couldn't be since the Milice was not founded before several months later in January of 1943.
When Granger talks about his bike being stolen, he mentions the license plate number: 813 HK 45 (in the original version to the least). This number belongs to a system that was introduced in France in 1950 only, which did not even concern bicycles.
In one scene in the cellar, during a conversation between Marion and Lucas, we can see the sound recordist hiding himself in a corner of the cellar.