“The rules are simple, just pick your favorite horror film for each day! However, you can’t pick the same horror film more [than] once. So once you pick say THE EXORCIST for your favorite horror film involving the powers of Hell, you can’t [pick] it again for any other day [whatsoever,] including favorite horror film.”
Source: Dollar Bin Horror
Anyone who has seen Let the Right One In will understand why this is on my list. As good as the American remake Let Me In is (especially Chloe Moretz), nothing can top Kåre Hedebrant and Lina Leandersson as Oskar and Eli. I watched this first as a random find on Netflix Instant Queue, and it was a few months later when the talk about the film really started picking up. At the end of the day, Let the Right One In is the darkest love story I’ve seen on film. For anyone who has only seen the remake with the needlessly added CGI effects, be sure to check out the original (which is based on the novel of the same name by screenwriter John Ajvide Lindqvist).