This already exists for movies. All you need to do is to include the IMDb ID in the file name (after the required Movie Title (year)).
e.g. Avatar (2009) - director's cut (tt0499549).mkv
If you have one subfolder per movie, you can also add an .nfo file which contains the IMDb ID.
It doesn’t matter if it’s a Kodi-compatible XML nfo or just a “scene” nfo text file.
