The Conjuring: The Devil Made Me Do It is based on a Connecticut Supreme Court murder case. Here's how the movie compares to reality.
** Due of Johnson's claim that he has no recall of the events, the "murder" scenario is dramatised.“Clearly, something was wrong with Arne,” says the narrator "Michael Chaves, the filmmaker said. "This is a truly remarkable occurrence in his life, and you have to believe that something had put him in a state of mind where he was disconnected from reality.
** Carl Glatzel Jr., a member of the Glatzel family who does not appear in the film, questions the entire story. Carl challenged the reprinting of The Devil in Connecticut, a book about Arne Johnson's case, in 2006. Gerald Brittle wrote it, with Ed and Lorraine Warren as key sources.
** Carl Glatzel Jr. claims,in a 2007 statement that the Warrens "concocted a phoney storey about demons in an attempt to become rich and famous at our expense," and that they "told my family numerous times that we would be millionaires and that the book would help get my sister's boyfriend, Arne, out of jail". I knew it was a lie from the beginning, but as a child, there was nothing I could do about it.”
** Carl Glatzel Jr. also claims, “Lorraine Warren, of course, maintained the story was true. It wasn't simply Ed and me” . She said amidst Glatzel Jr.'s lawsuit in 2007,"the cream of the Catholic Church was also engaged, and there was tremendous documentation.”
Chaves indicated during the press conference about the future of Conjuring being in the 1980s to investigate the age of the Satanic Panic . “During the 1980s, Lorraine would collaborate with detectives and police departments,” Chaves added. He further added,” I believe there were a lot of fascinating textural things in this movie that it serves as a backdrop for, and it's kind of fodder for something that may be explored in future cases.”