When Goebbels congratulates Halder at the filming of Halder's movie, he walks normally and very jovially. Real Goebbels had a deformed right foot, turned inwards and shorter than the left, needing a metal brace on his leg. Therefore, he walked with a pronounced limp, never with the energy and agility he shown in the film.
In the scene, when Halder takes a walk with his ex-wife in the cemetery, which is supposed to be in Berlin, Germany, Hungarian names are clearly visible on the gravestones.