== Types of media to include == 

 I've been going through the lists and removing entries that seem out of place.  I have excluded the following types of media: 

 ; Television Serials and Miniseries 
 - I have excluded both TV serials and individual episodes of these serials.  The former clearly don't belong on a list of "films" and the latter, although not terribly different from film shorts, would add far too much clutter to the lists to be useful. 

 ; Documentaries 
 - Although interesting for the progression of the genre, documentaries about horror don't qualify as horror films themselves. 

 ; Non-horror Films 
 - This is the most difficult one, as genre is a subjective thing and different sources give different genres for each movie.  My general rule of thumb has been to look at all of the usual sources for general movie info (IMDb, Allrovi, and Rotten Tomatoes) and if none of them give horror as a genre, I just remove it from the list outright.  If Allrovi lists it as horror, I leave it on the list and use that as a reference, otherwise I leave the reference blank until a more reliable source can be found.  Any movie I've removed can of course be placed back in the list if a reliable source is found listing it as horror. 

 Media I have included on the list but which could be debatable include 

 ; Made-for-TV Movies 

 - These movies are numerous and often very low-impact, but there have been a handful (e.g. Stephen King's It) that are notable within the genre.  At least one list has excluded these movies, so other opinions are welcome. 

 ; Direct-to-Video/DVD 

 - Again, these movies are numerous and generally low-impact.  This often includes sequels to obviously-notable films, so it is not uncommon for them to have their own Wikipedia page.  It is primarily for this reason that I have left them in. 

 ; Film shorts 

 - It's likely that many of these don't meet the Wikipedia notability criteria, but this is time-consuming and difficult to determine on a film-by-film basis.  The main argument I can see for including them is that they were key to the very beginnings of the horror film genre, with such films as Le Manoir du diable (1896) and Frankenstein (1910).  Not wanting to remove those films from the list, I decided to retain film shorts, but again there is room for debate. 

 Let me know if anyone has any objections to the above criteria, otherwise I think we should consider them general guidelines for the lists.