What is the scariest movie of all time?

Is it The Exorcist with its vomit-spraying scenes, or maybe Freddy's first appearance in A Nightmare on Elm Street ? Perhaps Jason's reign of terror in Friday the 13th or Michael Myers' in Halloween .

Whatever the case, scary movies hold a special place in cinematic history - and after exploring the Internet Movie Database, I've listed my top 31 picks in alphabetical order for the best films to watch on October 31.

This list isn't limited to traditional horror either; sometimes the greatest scares come from science fiction - or, as in the case of Jaws , the original summer blockbuster - a mass-appeal movie that terrified audiences worldwide.

An American Werewolf in London (1981, M) A werewolf attacks two American backpackers in

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