The Scream movies featuring the iconic Ghostface killer are one of the most popular horror franchises of all time. The four movies have grossed more than $330 million in the U.S. alone. But the roots of the grisly story go back to a horrifying murder in Florida in the early 1990s from which the Scream screenwriter drafted a script about a young woman alone in a house who is taunted over the phone and then attacked by a masked killer.