Continuity mistake: When Wyatt Earp is playing cards, a man comes to the table and pounds his fist saying, "You have to listen to this, Marshal." The stacks of money on the table are knocked over by the impact. The camera then looks at only a head shot of Wyatt's disturbed expression at the man bothering him. When the camera looks at the table again, the money is properly stacked again, all within a few seconds.
Continuity mistake: Just after Wyatt Earp finishes removing the bullet from a cowboy's foot, his white suit jacket does not show the burn hole seen earlier.