Directed by: Guy Hamilton
Starring: Michael Caine, Trevor Howard, Harry Andrews, Curd Jürgens
Continuity mistake: When the Senior Civil Servant is reading Dowding's letter there is a knock at his door. In the next frame the Civil Servant has removed his glasses, appears more leaned back in his chair, and the position of the letter/page has also changed. (00:06:00)
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 Colin Harvey: Never let me catch you doing a victory roll over my airfield again. Understood?
Trivia: During the attack by Heinkels from Norway across the North Sea English Squadron Leader says "help yourself everybody, there's no fighter escort." In reality the Heinkels had an escort of twin engine Me 110s. In 1968 there were no airworthy Me 110s so the movie ignored them.
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?