The Eagle Has Landed (1976) - 5 major mistakes

Factual error: When we are in the Colonel's office at the US army base there is a US flag in the corner. It has 50 stars on it, as you can tell by the pattern. There were only 48 stars on the flag during WWII.

Continuity: In the scene where Devlin meets Molly for the first time (outside the pub) the ARP sand and water buckets on the wall are in one position. When Molly leaves the scene, just before Devlin enters the pub, the sand and water buckets have changed position.

Factual error: In the aerial shot over rural Britain near the beginning of the movie, there are two modern cars visible. Too new to be early 40's models.

Continuity: After Kurt returns to the quay from the raid near the start, the coat of one of his men is noticeably bloodstained. Later, walking up the stairs to the pub, the bloodstain is gone. But when he pours alcohol over Devlin's arm, the bloodstain has returned.

Continuity: After Devlin has met Molly on the beach, she runs to her horse, and obviously is having some difficulty in mounting it. When the shot suddenly changes to the closeup, she is mounted perfectly.