Why Do Movie Mistakes Occur?

Director Steven Spielberg accidentally stepped into the frame of one of his first movies, a made-for-television production called Duel. When the film was released on DVD, Spielberg left the mistake in to remind him of the imprecise nature of film making. Other famous movie mistakes include the miraculously self-recovering hubcaps in Bullitt, the clear shadow of a modern movie camera in Stagecoach, and the door-challenged Storm Trooper in the original Star Wars.

i think. Some movie mistakes are caused by the standard practice of shooting out of sequence. Very few movies are filmed in a linear progression according to the script. The producers may only have access to a particular location for a short amount of time, so the director and actors must shoot all of the scenes based at that location at one time, regardless of where the scenes fit in the overall narrative.

this is nice thread. i like this post. movie mistake i don't know.