Other mistake: In the opening scene of this German movie from 1944, a panoramic view of the city of Potsdam is shown with the subtitle "Potsdam 1813". In the background, the two high radio masts of the Potsdam Military Communication Central can be seen very clearly before the sky.
Kolberg (1945)
1 mistake
Directed by: Veit Harlan, Wolfgang Liebeneiner
Starring: Heinrich George, Gustav Diessl, Horst Caspar, Kristina Soderbaum
Stadtkommandant Loucadou: Capitulation is better than Suicide.