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This was, of course, hysteria, hype, and a bit of fun in the times when water-cooler conversations drove public interest before memes and hashtags, but it's a testament to just how successfully The Blair Witch Project's ending achieved its objectives. The ambiguity was pulled off with such aplomb that horror aficionados, none of whom were numb to the found footage genre's real-but-not tricks and tropes, legitimately questioned whether the whole release wasn't actually just part of the Blair Witch monster's curse – one to which they'd now succumbed just by watching it. The final shots of The Blair Witch Project left 1990s audiences leaving theaters with a genuine sense of unease. By now, the legendary status of The Blair Witch Project is undebatable, but the movie wouldn't have reached it without the ending. It was the first found-footage movie pertaining to the supernatural that genuinely had audiences questioning its status as fiction. Then, The Blair Witch Project came along and changed everything. The found footage format was used to attempt this with movies like Cannibal Holocaust and equally controversial The Faces of Death, but the conceit was always "how close to a snuff film can we make without actually making a snuff film", relying on visceral disgust more than creating fear from psychological realism. Blair Witch 2016 is unlikely to get a sequel, meaning its ending won't get expanded upon. Blair Witch, the 2016 sequel, backs up the time travel theories, with Heather’s brother James heading into the same woods to get closure on her disappearance, and his group soon getting caught in a loop that ends in Rustin Parr’s house.
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If they are caught in a time warp, it’s also possible Rustin Parr himself is the killer.
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Other theories state some Burkittsville locals are the ones responsible for the killings (possibly leaving the Blair Witch stick figures as effigies or totems of worship), or that the witch possessed Josh, and he’s the unseen attacker. The movie shows the group getting lost and traveling in circles, leading some fans to believe they’re caught in a time loop created by the witch, which allows explains how Parr’s house could still be standing. There are a number of theories about the real killer in The Blair Witch Project, but the most commonly accepted is that the Blair Witch lured Heather and Mike to the house and killed them. The Blair Witch Project ending was one of several for the movie, but the chosen conclusion was conceived out of the need to end on a creepy note, but without revealing the witch herself.
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