Character mistake: Many windows only have 1 or 2 panes taped over to prevent glass from shattering when it's hit. Unless every pane is taped over this will achieve next to nothing.
Battle of Britain (1969)
1 character mistake - chronological order
Directed by: Guy Hamilton
Starring: Michael Caine, Trevor Howard, Harry Andrews, Curd Jürgens
Factual error: The German planes in the movie should be Messerschmitt Bf-109E. However they're actually Hispano Buchon, a post-war version of the Bf-109 model, built in Spain. The Bf-109 was powered by a Daimler-Benz inverted V, and exhaust ports were at the bottom of the nose, not at the top as seen here. That's because the Hispano Buchon used the same engine as the Spitfire.
Squadron Leader Canfield: The engine's overheating, and so am I! Either we stand down, or blow up! Now which do you want?
Trivia: During the scenes dealing with the dive bomber attacks on the RAF radar stations, the filmmakers used rather un-convincing radio-controlled models to portray the German Ju87 Stukas. Originally, the producers had intended to use Proctor trainers, modified to resemble the Stuka. However the British aviation authorities refused to pass them as airworthy, forcing the producers to resort to using the models.
Question: Did Sgt. Pilot Andy loot the mantle clock he can be seen carrying when he is returning from helping to rescue bomb victims, to the refuge shelter?