Plex Documentation → Your Media
→ Naming & Organizing Your Movie Files
→ Naming & Organizing Your TV Show Files
Make sure you have the movie named and organized per Plex requirements.
After renaming, Plex Dance the movie to remove any previously incorrect matching information.
This works on my system. The IMDB ID is optional, but tells Plex exactly which movie to match.
/movies <-- folder added to movie library
.../Indiana Jones and the Raiders of the Lost Ark (1981) {imdb-tt0082971}
....../Indiana Jones and the Raiders of the Lost Ark (1981) {imdb-tt0082971}.mkv
