FanFilm somebody compiled together a bunch of Joe Oriolos 1950s FelixTheCat cartoons and called it FelixTheCat:TheMovieThey even used the same cover art. You can tell because each episode they strung on had End Credits and a specially animated Studio Logo for Trans Lux Studios where Felix says his famous "Righteo" Catch Phrase. You can also tell because each episode is introduced with chapter title narraton and the episodes are listed out of order and always focus on Felix's relationship with his arch enemy The Professor who wants Felix's magic bag but is always foiled in his plans to get it.
The Shelf of Movie Languishment: The film technically was finished as early as 1987, but was left locked away for years until someone decided to dig it out and release it. Why they didn't take this extra time to touch up on the film's flaws (especially the glaring animation errors) is anyone's guess.