13 Iconic Horror Movies Inspired by Real-Life Events

What's real: The film's events are directly inspired by real-life couple Tom and Eileen Lonergan, two American tourists who were left behind during a scuba diving excursion in 1998. The Guardian details the ordeal in full, mentioning the various bits of evidence that were discovered after the couple's disappearance. While there's no indication that the Lonergans met their end because of a bloodthirsty shark, their bodies were never recovered.