Part of the appeal of horror movies is that scares are the top priority. But that can mean quality comes second.

Horror movies are sometimes filled with cheesy sub-plots, low production value, and, at times, some seriously questionable acting, but as long as the movie delivers that thrill or shock you came to see, all is forgiven. Right? We've assembled a few on-screen errors -- from movies such as "The Shining" and "Scream" -- to see if that holds true.

As usual, all photos are courtesy of MovieMistakes.com.horror movie mistakes