When MAJ Egan is trying to evade capture while hiding in the water, his .45 pistol alternates between cocked and uncocked.
When Harry Crosby is travelling to Oxford via train, the steam locomotive pulling the train is a Southern Railway Class S15. However, it seen with Great Western Railway (GWR) lettering on it's tender. The S15 class never operated with the Great Western Railway.
Approx 3 minutes into the episode the escaped pilot is seen with his Colt 1911 with the hammer resting against the rear of the slide and then he cocks the hammer.
The 1911 is a single action only pistol (the trigger only drops the hammer but does not cock it) no person trained with the firearm would ever put the hammer down as it renders the firearm useless until you cock the hammer again.
the correct way to carry it in a safe condition is to cock the hammer and engage the safety or "cocked and locked)
the correct way to carry it in a safe condition is to cock the hammer and engage the safety or "cocked and locked)
Stalag Luft III is portrayed as a massive camp, with several hundred barracks and similar in size to a concentration camp, and the caption marks the date as October 1943. In reality, Stalag Luft III had just opened in March 1943, so by October it was not that big. Its appearance is more consistent to the camp in the height of its operations, in November 1944.
When Robert Rosenthal comes into the doctor's room at the English estate and comes over to the record player, the photograph is playing 33RPM records that did not exist until 1948, and the tone arm (and likely the whole machine) is a Garrard model dating from the 1950s, likely a Garrard RC-80.
The shot of the train travelling to Oxford consists of British Railway Mark 1 carriages, which didn't enter service until 1951.
While this could be an error in the German file, the Luftwaffen-officer states that Major Egan was taken prisoner near Westbevern (a village east of Münster). However, historically, the Mlle Zig Zag crashed near Nottuln (a village west of Münster). Though Egan could have walked this distance while not yet captured, it would have been out of character to falsely go 20 miles eastward deeper into the Reich instead of westwards towards the Dutch border just 30 miles away.
Strangely, a lecturer says the Americans took 500 years to produce a document similar to the Magna Carta, and Crosby mumbles that they were under the tyranny of the king of England for 500 years.