For those wanting to have easier categorization of their digital movies, Vudu does have a "My List" feature in which you can create an unlimited number of lists of movies from your library. I've created lists based on franchise (Die Hard, Marvel, Mission: Impossible, etc.), kid-approved movies...
Nothing fancy at my house. Movies, TV Shows, Special Interest, and Music in their own sections sorted A-Z in IKEA bookshelves. Marvel MCU is mixed in alphabetically (but I'm thinking of changing that), but Star Wars and Star Trek (movies and TV are combined) are filed in chronological order...