Hi SAH,
It depends on what your taste in horror is like, e.g. how varied you are willing to be.
My list would have to include the following:
- Cannibal Holocaust (Probably the most extreme horror film, available, that can genuinely horrify those who watch it! Be warned though, it's nasty stuff, and I mean that!
)
- "Suspiria" or "Deep Red" (Two of Dario Argento's best horrors.)
- Lucio Fulci's "The Beyond" (An Italian classic, of the Video Nasty-era, circa 1980.)
- Ringu (The Japanese version of the "Ring" series. No gore, no sex, almost no violence, and no bad language, but genuinely creepy. Probably best watched on a DVD player, on your own, late at night! Once you've seen it, you'll understand why I suggest this way to watch it.)
- As Garrett said, "The Serpent And The Rainbow" is a superb, and genuinely disturbing horror film. "Poltergeist" is another.
If you can stomach them, check out most of the Tartan Terror or Tartan Asia Extreme titles, like "Freezer", "Audition", "Sympathy For Mr Vengeance" and "A Snake Of June". They are Far Eastern films, with English subtitles, but are worth watching for being so very different form the usual gamut of horror flicks you'll be used to watching.
Hope these suggestions help.
Pooch