Not too long before filming of the 2005 remake of The Amityville Horror began, the body of a fisherman washed up on the shore of the set. Terrible, yes, but not terribly creepy...yet. Next, star Ryan Reynolds reported that he kept inexplicably waking up at the same time his character did in the movie, and since he's clearly not the "method acting" type, that's especailly weird. Also, the man that Reynold's character is based upon, George Lutz, dropped dead four weeks before the film premiered.
The easiest explanation, of course, is to cite weird coincidences. But considering that the film is based on a book that itself is based on a supposed real-life haunting, we're not so sure. Maybe someone was pissed that Reynolds was cast in the title role, because his performance is the worst.