Librarie only show a single movie

[TheDreadPirate]

My bad.  My work PC blocked the domain the image was hosted at and didn't see it.

And I misinterpreted the question.  I'm assuming you are expecting "The Super Mario Movie" to also be listed in the search, correct?

Strange.  I had assumed that "The" would be ignored for search since Jellyfin ignores "The" for sorting purposes.  But movies and shows with "The" in their name do show up when I search for "T".

   

In the metadata editor, what does it show for the title for Mario?  Are you downloading metadata in English or in French?  Is your interface language set to English or French?  The screenshot you posted was in English.