Other mistake: The Lakota is attacking a small group of men. One is face down on the ground, and he lifts his head to cut his throat. In the background are two cowboy actors joking and twirling their guns. One drops his gun and picks it back up. (00:20:43)
Westworld (2016)
1 other mistake in season 2 - chronological order
Starring: James Marsden, Jeffrey Wright, Thandie Newton, Evan Rachel Wood
Trace Decay - S1-E8
Factual error: When the armed party comes into town to steal the safe in the bar, the leader points a repeating rifle at a victim on the ground and shoots. When he fires a used cartridge flies from the gun. Repeating rifles do not eject cartridges when they are fired. Automatic weapons eject a spent cartridge when fired. Repeating rifles only eject the cartridge when the lever is wrenched. (00:32:20)
Teddy Flood: Well, your mouth moves fast enough. How about your gun?
Passed Pawn - S3-E7
Trivia: Enrico Colantoni plays Whitman, who Rehoboam arranges to be removed from society. Fitting casting, as he previously played Elias in Person of Interest, a TV series based on the idea of an AI eventually making decisions for humanity and removing threats.