It is stated that the agent is in room 606 of the hotel. This would be on the 6th floor. The hotel shown in frontal view does not have 6 floors.
The truck that Hogan drives to town, with Schultz in the other seat, has the steering wheel on the right. German trucks have the steering wheel on the left.
The shot of the hotel that is supposedly the Hauserhof has a sign with the name 'Grindelwald Palace' prominently displayed above the entrance.
Both Klink and Burkhalter mention the large number of SS at the hotel, then Klink says the Gestapo are incompetent.
The SS and the Gestapo were not the same agency.
However, many Gestapo officers were in the SS.
The SS and the Gestapo were not the same agency.
However, many Gestapo officers were in the SS.
LeBeau first cranks up the air raid siren, then leaves the siren without anyone continuing to crank it. However you can continue to hear the siren for a few minutes afterwards.
It's not a hand crank, it's an electrical switch.
It's not a hand crank, it's an electrical switch.
When Schultz is modeling the wedding gown, it fits him perfectly, even though he is at least a foot and a half taller than Frieda.
Klink and Hogan are in Hogan's office, talking about Klink making arrangements for a wedding at the Hauserhof. Klink looks up and says, "Yes, the Grand Ballroom." At that point, there is a beautiful reflection of the stage light in his monocle.
There is no way that either General Burkhalter or Count von Hertzel would not have realized that the underground agent (in the wedding gown) was not Frieda as they were leaving the hotel. She is several inches shorter than the both of them.
When the Count and his new 'wife' leave the hotel, her veil is down, covering her face. After a wedding, the veil should be up so all can see her face. Having the veil down at this point in the wedding is not normally done; but had to be done in this instance for the plot line.