Revealing mistake: About 3/4 through the movie, Bradley Cooper and his wife are talking in a bedroom or nursery. He takes his daughter and holds her - the baby is clearly fake.
Continuity mistake: A brave captive is dragged to Artemisia who is eating an apple. It alternates between being green or red throughout the scene. (00:21:35)
Continuity mistake: During the Jesus loves Hitler scene, Wardaddy's goggles keep shifting position on his helmet from crooked to level and vice versa. (00:21:50)
Continuity mistake: During the knife fight at the end, the position of Lance's hands on the German officer is changing instantly. (01:14:50)