Factual error: The epilogue dates the main story as having taken place in the 1870s. In the opening scene, the locomotive tender has distinctive cast Bettendorf trucks (bogies) which were not introduced until c. 1900.
Factual error: The opening sequence has trains passing opening to the town scene. The trains are passing over a modern (1990) railroad crossing.
Factual error: The mine that Rooster fires his pistol into is shown to go far into the hillside. A lot of digging has occurred here. However, the exterior shot of the mine shows no mine tailings whatsoever. There should have been a substantial amount of removed rock outside the entrance.
Factual error: The soles of the boots worn by Rooster are incorrect for the period. They are not smooth, but are patterned for mountain climbing. The soles of the boots may be seen in the scene in which Rooster is drunk and challenges the Ranger in target shooting.
Factual error: Crossing the river into the Indian Nations, from Arkansas to Oklahoma (east to west) the river should be flowing south, right to left. It is flowing north, left to right.
Factual error: The story takes place in 1875, but Rooster's Colt Army revolver has a cylinder cross-pin in the frame that did not appear on Colts until 1896.
Answer: It was Frank James, brother of Jesse. He didn't stand up as she approached. She was offended by his lack of manners.