The "Poltergeist" horror films are one of the scariest, best-known movie franchises in Hollywood history, but the terrifying paranormal events portrayed on-screen often pale to the bizarre, mysterious, and sometimes tragic incidents that occurred off-camera. From malfunctioning equipment and on-set explosions, to killer dolls and sudden and tragic deaths, the rumors swirling around the series have both audiences and filmmakers alike asking the question: Could these tragic events just be a horrific coincidence? Or are the Poltergeist movies indeed cursed?