The Devil Is In The Details: Filmmakers Watch For Continuity Errors During Filming
I would bet even money odds there has not been a movie made that did not have at least one continuity error. Movie scenes are not shot in sequence, so there is a lot of room for error. There are communities of sites online dedicated to finding errors in movies. A continuity error can be minor as a character’s drink was not filled at exactly the same level from one frame to the next in a scene.
Major continuity movie errors can the ruin suspension of disbelief. Imagine a villain shown with a gun in their right hand, whiskey neat in their left, and an unlit cigarette hanging from their mouth about to shoot a lone victim. Cut away to lone victim then back to villain. This time viewers see the villain with a gun in their left hand, water bottle in their right hand, and they are chewing gum.
Continuity in a movie is something that production needs