Revealing mistake: At the beginning of the film, young men headed to basic training in Biloxi, Mississippi are shown on a train crossing a river. The name of the train is visible and easy to read. At the end of the film, the men are leaving Mississippi. The scene shows the train crossing the same river, but the name of the train is backwards. The director must have wanted to save money, and reversed the film for a mirror image.
Continuity mistake: In the scene which they must cross the water during their hike, Sgt. Tumey asks Jerome to pick a volunteer to test the depth of the river. While Jerome is talking, his rifle is being held up and across his chest. While Sgt. Tumey is talking, you can see Jerome from behind and the rifle is down. It shifts back and forth during the dialog.