Factual error: Just after the British flag is raised over the British garrison's camp, we see an interior shot of Brig. General Maitland's field office. There are no American forces involved in this conflict, but at the far right of the screen (visible in widescreen format), the flag hanging behind his desk is, inexplicably, the American Stars and Stripes instead of the British Union Jack. (00:58:30)
Revealing mistake: At the end, when King's troops are attacking Khan's camp, a "dead" insurgent hops up and runs off screen just as the arsenal explodes. (01:36:00)
Other mistake: In one scene Tyrone Power and his men survey a village where all the inhabitants have been killed by rebels. A dead boy is on a table and as the camera pans back he is wriggling his toes.