I'll definatly throw an extra vote to Bucket of Blood, looks like it is already gonna get there, but I want to back two movies that I really expected to see with more votes than just mine.
Dementia: Low budget masterpiece, surreal film noir/ horror complete with an amazing example of a sexy female anti-hero. Quality score, quality concept, just a brilliant movie with bags of atmosphere. AKA Daughter of Darkness, try to watch the original version, not the version with the cheesy narration overdub. Awesome movie, way ahead of its time, plenty of faults but really think it is more than worthy of a top 20 spot...
El Vampiro: So, while I wasn't that surprised to see Dementia didn't feature in many/ any lists but mine, I was kinda surprised to see this movie not getting a few more vote. This, in my opinion, is an essential inclusion in the top 20. Predating hammer's
Horror of Dracula you get this beautiful mexican offering filled with all the tropes that made Christopher Lee a horror icon. Beautiful cinematography, great atmosphere, sleek and stylish. This is a must watch for any fan of horror and to see Horror of Dracula in the top 20 and El Vampiro slip out with just one vote would be a tragic. If this movie didn't inspire hammer's Dracula, it was certainly a reference point. Really urge people to give this a watch if they havent seen it already.... Gonna link one scene from youtube, keep in mind while watching the scene that this movie
predates Horror of Dracula. Pay attention to the score, the atmosphere, the shots and the style, could so easily be watching hammer's Dracula..... Please give it a watch.