Sometimes truth is more horrific than fiction. For this list, well be looking at scary movies either based on or inspired by true events that omitted key details that wouldve left the viewer on an even bigger downer. Our countdown includes The Hills Have Eyes, Scream, My Friend Dahmer, and more! Any other horror movies you know based on true stories? Let us know in the comments.Watch more great horror videos here: Top 10 Best Horror Movies of 2021 (So Far):