Other mistake: In the final gun battle when the Regulators are trapped in the attic of the burning house, one of the characters backs into the brick chimney that's coming up through the floor. You can see the entire chimney move when he backs into it.
Young Guns (1988)
1 other mistake
Directed by: Christopher Cain
Starring: Kiefer Sutherland, Charlie Sheen, Dermot Mulroney, Jack Palance, Emilio Estevez, Lou Diamond Phillips
Revealing mistake: There is a scene where one of them jumps on a horse, and you can see one of the crew holding on to the reigns as the horse throws its head back.
"Dirty Steve" Stephens: Did you guys see the size of that chicken?
Trivia: When the Regulators are making their escape out of the house at the end, if you look at the extra shot right after Charlie (Casey Sizemaszko) busts out of the house, you'll see a young Tom Cruise. He was on-set visiting with friend Emilio Estevez and got into makeup (including huge sideburns) and on-screen.
Question: Did that bounty hunter in the bar ever realise that he was in fact talking to Billy the Kid... Prior to being shot?
Chosen answer: He may have. When Billy started whistling, the bounty hunter's face changes. He continues to speak to Billy in a dismissive tone, but does eventually pull the trigger (although Billy had unloaded the pistol). Hard to believe he would just shoot some mouthy kid in a bar.