When we watch a film that was based on true events, it tends to make it an all-around more impactful movie experience. However, when a film is disturbing due to its graphic nature or tells a downright unbelievable story, to find out that it was originally inspired by true events can be truly shocking. From Zodiac to Black Mass, here’s a list of crime films that you won’t believe are based on real events.
Zodiac was a film screenplay by James Vanderbilt that is based on the 1986 non-fiction novel of the same name by Robert Graysmith. Both the novel as well as the film tell the story of the manhunt for a notorious serial killer that called himself the “Zodiac” and committed several murders around the San Francisco Bay Area during the 1960s and 70s. He was known for taunting the police with letters, blood-stained clothing, and ciphers mailed to the newspapers. The culprit was never caught and this has remained one of the United States most infamous unsolved crimes. In order to make the film, the director, writer, and producer spent more than a year researching and investigating the murders. You won’t believe the story that inspired the Texas Chainsaw Massacre!