Continuity mistake: There is genuine wartime footage of Spitfires of the the right type for the period, but other scenes have later (maybe even postwar) versions flying about.
Continuity mistake: At the fair when Isabelle goes to give Suzanna the baby, she actually hands it to her in one shot, but in the next (a split second) Suzanne shows no sign as if the baby ever left Isabelle's hand. (01:38:24)
Continuity mistake: After the "car chase" the white car gets put in the barn. When the black car arrives it is covered in mud (so much they have to wipe it off the windscreen) from the dirt track. The white car only has a few specks of dirt.
Continuity mistake: The film is supposed to take place in 1917, but several of the german soldiers our heroes encounter are armed with Bergman M18 sub-machineguns which didn't appear until a year later. To make things even worse all the guns comes with a magazine-type that didn't appear until the mid-thirties.
Continuity mistake: In an early scene Travis and Dickenson are in Travis's office. Travis goes to the mantel, gets a cigar and pours himself a glass of sherry. In a later scene, when Travis meets Crockett in the cantina he refuses a drink from Crockett claiming he doesn't drink, ever.
Continuity mistake: When that one captain is refusing to obey the orders of Nick Nolte he says the time is 13:21 but his watch says it's actually 14:31. Then a couple of seconds later the time is 14:45. Their whole conversation was shown and there was no time in between and it was much shorter than 15 minutes. (01:03:00)
Continuity mistake: Nellie is called into Captain Brackett's office one day. Later, one of the girls asks her "What did the old man want this morning?" However, the scene at night between Billis and Cable shows that a whole day and night must have passed in between these two scenes. Therefore the nurse should have asked "What did the old man want yesterday?"
Continuity mistake: Charlie, disguised as a tree, enters a pipe to escape a German. When the German tries to pull Charlie out he separates the lower part of the tree costume along with Charlie's shoes. When Charlie emerges from the other end of the pipe he is still wearing shoes.
Continuity mistake: Every time we see the Nurka fire a torpedo, regardless of whether the order was "fire one," "fire two," or even "fire five" or "fire six," the torpedo is always seen leaving exactly the same tube.
Continuity mistake: Throughout the movie, Ho is referred to as "Captain Ho", however in the closing credits, his name is "Colonel Ho".
Continuity mistake: When Briony sees Cecilia coming out of the fountain (from Briony's perspective), Cecilia steps out of the water with her right foot first. When we see the same scene afterwards, from Cecilia an Robbie's perspective, Cecilia steps with her left foot first.
Continuity mistake: There's one peaceful scene where the point of view is from a boat drifting down a canal in town. As the boat drifts, it passes by some sort of monument, and a very clear full-body shadow of the camera man and camera is visible against the monument.