The One Weird Detail In 'Dracula' That You Completely Missed

It’s an odd detail in the 1931 version of “Dracula” starring Bela Lugosi that most people never even notice. But once you spot that piece of torn cardboard in a key scene, it’s impossible to unsee.

Was it a big, glaring production error... or does it actually serve a purpose in the plot? 

Find out in the latest viral video from theCinemassacre YouTube channel

This article originally appeared on HuffPost.