In Hollywood's long and illustrious career, we've seen many different kinds of films throughout the generations. Some films [[SugarWiki/SoCoolItsAwesome have become all-time classics that hold up to this day in many people's eyes and minds and will likely continue to be hailed as great movies from here until the end of time]]. Some are [[SoOkayItsAverage pretty average at best; nothing too great, but nothing awful either]]. They're neither substantial or terrible, they're just kind of forgettable. Some movies are often regarded as being [[SoBadItsGood incredibly cheesy and stupid]], [[NarmCharm but have their perks because of how silly and dumb they can be]], sometimes even becoming GuiltyPleasures in the process.
And thenů there's '''these''' films. The kind of movies that, when brought up, immediately send shivers up even the most hardened critic's spine. The kind of films so bad that they fail to appeal to the niche audiences they're shooting for. Films so bad that they disrupt the very fabric of space and time and make even scientists question just how these freakish anomalies of film slipped through the cracks. These are the kind of films ''nobody'' wants to have to see; the kind of films you wouldn't even wish on your worst enemies.
In other words, don't say we didn't warn you if you want to see these films for yourself if you think these claims are exaggerated.
For more information, don't forget to give [[https://en.wikipedia.org/wiki/List_of_films_considered_the_worst The Other Wiki]] a look.
'''''Important Note:''''' Merely being offensive in its subject matter, a BoxOfficeBomb, or a film you don't plain like [[RuleOfCautiousEditingJudgement is not sufficient.]] Hard as it is to imagine at times, [[FetishFuel there is a market for all types of deviancy]], no matter how small a niche it is. It has to ''fail to appeal even to that niche'' to qualify as this. (If you're unsure whether it belongs here or not, visit the [[http://tvtropes.org/pmwiki/remarks.php?trope=Horrible.Film discussion page]] and give us your input. Otherwise, if it's something you just plain don't like, please don't shoehorn it in, this isn't a page for complaining about things that fail to you.)
'''''Second Important Note:''''' It isn't a Horrible film just because anyone from Website/ThatGuyWithTheGlasses and/or any other CausticCritic reviewed it, or because it was on ''Series/MysteryScienceTheater3000''. Nor is it a Horrible film just because it earned a Razzie nomination/award for "Worst Picture." There needs to be independent evidence, such as reputable critics like Creator/RogerEbert and Creator/LeonardMaltin (emphasis on plural), for example, to list it. Once it is listed, they can provide the detailed review. Website/RottenTomatoes and Metacritic are good starting points to find those critics; if the rating on RT is in the single-digits and/or the Metascore below 30, it's a potential candidate for this list.
* [[Horrible/LiveActionFilms Live-Action Movies]]
* [[Horrible/AnimatedFilms Animated Films]]