Early on, the Union and Confederate troopers are armed with single shot breech loading carbines, but in the final battle scene, all of a sudden, everyone is armed with Winchester repeating rifles that do not exist in 1865.
When Captain Bentley (George Hamilton) attacks Emily Biddle (Inger Stevens), the Captain rips the entire back of Emily's dress exposing her back. However later in the story, Emily's dress appears good as new with no hint of repair or piecing together.