Well I love both Countess and TLG
The Goose Steps Out (1942, Basil Dearden)
Morale booster from the nation's favourite halfwit. Found to be the spitting image of a captured German spy, a bumbling schoolteacher is pressganged into service. Always loved the sequence where he gets some youngsters to 'flick the Vs' at the Hitler.
A gesture that no doubt would have been censored in any other situation at the time