Whenever possible, I add these elements in foldername/filename:
(tt3659388) for IMDB web page of the media
(ac221524) for Allo-Ciné’s similar page
such as:
\MyLibrary\Science-Fiction\The Martian (2015) [FR] (tt3659388) (ac221524)\MartianFR.mkv
or
\MyLibrary\Science-Fiction\Martian (The)\The Martian (Seul sur mars) (2015) [FR] (tt3659388) (ac221524).mkv
Plex default agent should take advantage of these codes (whenever present) to better guess the media.
I believe it should be easy to implement as it is only few lines of code to parse the foldername/filename and point to appropriate pages.
http://www.allocine.fr/film/fichefilm_gen_cfilm=[ac_code].html"
http://www.imdb.com/title/[tt_code]