Continuity mistake: When Belle Armitage first shoots her pistol at Johnny Finger, she drops it down the front of her dress. Seconds later, it reappears up between her ample bosom.
Continuity mistake: When Marshall P. Knutt destroys the desk in the Inquiries office, he puts the top back on and the Inquiries sign on it. The man behind the desk then leans on the desk, destroying it again, but when Knutt leaves the office in the next shot, the desk top is back in place complete with the Inquiries sign.
Continuity mistake: When Sheriff Earp leaves his office to confront the Rumpo Kid his pistol barrels are seen extending at least six inches beyond the holsters. Seconds later, as he mounts his horse, the pistol barrels have changed to a more normal length.