Continuity mistake: In the scene where the three Confederate soldiers are about to be executed for desertion, a blindfold is placed around the deserter on the right. It is a narrow strip of cloth covering his eyes. The camera pans to the firing squad and then back to the three men. The blindfold on the deserter on the right, is now much wider.
Continuity mistake: During the changing of flags at the school, Major Jackson is being told that his country and the country they live in are one. The gentleman telling him this clasps his hands together to show unity. When he clasps his hands together he holds them at about face level but when the camera angle changes his hands are now seen below his chest. (00:11:27)
Continuity mistake: When Samuel Zook's brigade crosses the pontoon bridge at Fredericksburg, the title card refers to him as 'Colonel Zook'. However, some time later General Hancock addresses him as 'General Zook' and his shoulder straps indicate that he is in fact a brigadier-general, not a colonel.
Continuity mistake: When the Confederate soldier is telling the other soldiers about what will happen when he dies, when he says 'give them to my captain to give to my daddy' a soldier with a light coloured uniform marches by. In the next wide shot, it's a soldier with a dark coloured uniform. (01:05:45)