Factual error: There are no privates in the Air Force. They are called Airmen.
Factual error: The film is set during WW2, but when Pitkin drops Judy off at the station, the locomotive bears the lion and wheel emblem of 'British Railways', which was formed in 1948. Likewise the wagons in the railway yard are to a British Railways standard design and are out of period for WW2.