The Conjuring is a movie based on the true story of the Perron family, who experienced unexplained ghostly activity in their home in Rhode Island in the 1970s. Several members of the family actually visited the movie set during filming. But nothing could not convince Carolyn Perron, the mother of the family, to set foot near the set. And for good reason. A number of weird and unexplained events plagued the filming of this movie.
Once, while the Perron family were on set, a strong wind came up and seemed to swirl around them. Members of crew standing nearby noticed that the trees just opposite them were not moving. Worse was to come. Just a couple days later, the hotel that the actors and movie crew were staying in caught fire and everyone had to be evacuated. James Wan, the movie’s director, recalls working late in his office one evening when his dog started growling at something. Getting up to investigate, Wan couldn’t find anything that would antagonize the dog. However, the dog kept growling and seemed to focus on an unseen entity across the room.
Vera Farmiga, who played the role of a paranormal investigator, refused to take the script home with her as she said it made her feel uneasy. She also couldn’t read it at night because she became paralyzed by fear whenever she tried. She remembers opening her laptop once and seeing three slashes across the screen, as if some creature had dragged its paw across it. Creepy.
https://www.forbes.com/sites/scottmendelson/2016/06/15/the-conjuring-is-our-first-successful-post-avengers-cinematic-universe/#6c8892ff76ce Via Forbes.com