For the 1960 version:
/Movies <-- folder added to movie library. Exact name unimportant.
/The Magnificent Seven (1960) <-- movie_name (year)
/The Magnificent Seven (1960).mkv <-- movie_name (year).ext; ext=mkv/mp4/etc.
For movies with remakes, it is important to add the release year to the folder & file name, so Plex knows which movie to match.
Plex Dance the movie after renaming/reorganization to remove incorrect information from the Plex database.
If using a MP4/M4V file, edit the library and uncheck prefer local metadata. If the embedded metadata is incorrect, Plex will misidentify the movie.
You may also need to uncheck Use Original Title. The Magnificent Seven was based on the movie Seven Samurai. That might be throwing things off somehow.
After editing library settings, refresh metadata if Plex does not do so automatically.
