FYI, IMDB has the older version as 1987, not 1989.
Do you have Collections enabled? It seems you might have the library set to “Hide items which are in collections.”
Edit the library, select Advanced, check the setting for Collections.
Change to desired setting.
If not a Collections issue:
Do you have the movies in separate folders? While not mandatory, it can help sometimes.
/Movies
/The BFG (1987)
/The BFG (1987).ext
/The BFG (2016)
/The BFG (2016).ext
If you rename/re-organize the movies, be sure and Plex Dance the one you changed/moved. This will clear incorrect info from Plex’s database.
In Plex Web, you should see an option to split the movies from the pre-play page. Click on the three vertical dots in the upper right corner. You should then see Split Apart in the drop down menu.
