Miscellaneous: When little Jordan is crying because he is afraid to ride the pony, there is a large Texas flag hanging in front of the mansion. The star on the flag is upside down.
Errors made by characters (possibly deliberate errors by the filmmakers): At the dinner table in Maryland, Jordan Benedict states that his ranch is 595,000 acres. Later on the ranch is referred to as 595,000 square miles.
Errors made by characters (possibly deliberate errors by the filmmakers): The flags in the Benedict house are displayed backwards. The U.S. flag should be on its own right (the observer's left) when displayed with other flags.
Errors made by characters (possibly deliberate errors by the filmmakers): The U.S. flag on the casket at the train platform is displayed incorrectly, with the field of stars on the right, but then correctly at the burial, with the field of stars on the left.
Errors made by characters (possibly deliberate errors by the filmmakers): A group of Texan landowners talk about Geronimo as the chief of the Comanche. Geronimo was an Apache.
Continuity: Near the end, when Jett and Luz are in the bar together, the amount of liquor and ice in Jett's glass changes.
Revealing mistakes: During the confrontation between Bick and Jett in the hotel banquet hall stockroom, Bick throws a "basket" knocking over several storage shelves. The shelves start to fall before the basket actually makes contact.
Continuity: When Bick and Leslie first arrive in Texas by train, they disembark into a major dust storm. In the next shot, of Leslie walking toward her horse, the air is suddenly completely clear.
Factual errors: In the Jett Rink Airport opening day parade, there are riders on horseback carrying an American flag, and a Texas flag. The American flag being carried has 37 stars (should have been 48), and the lone star on the Texas flag is upside down (the stripes are right side up).
Boom mic visible: Shortly after Leslie prepares breakfast for the first time in the ranch, surprising Luz, and as Bick walks down the stairs, a microphone is briefly visible above the shot.