Scary Movies
Good Halloween themed live action movies are Suicide Circle, Tomie and Ringu. Found this link as well. http://www.fjmovie.com/horror/title.html

Also check out Gozu, Uzumaki, Tetsuo: The Iron Man and a slew of others. Even though it's not Japanese, go get a hold of "A Tale of Two Sisters." It'll mess you up.

Kowaii