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We won't spoil it for you -- check out the video below (be advised, it contains strong words and unpleasant imagery) to see the best reactions of Chatroulette users.
Interestingly, this is not the first viral video campaign for the movie; a couple of weeks ago a website called Church of Saint Marks appeared with "information" on exorcism. What the site actually featured was one of the main characters from the movie, Reverend Cotton Marcus.
The Last Exorcism is slated to hit U.S. theaters on August 27.