3. Split

Split is Shyamalan’s most disturbing film, a psychological horror-thriller that traps audiences inside the fractured mind of Kevin Wendell Crumb (James McAvoy), a man with 23 personalities, one of whom—the monstrous Beast—is preparing to emerge. The film subtly hints at something larger than Kevin’s disorder, using whispers of his past trauma, his seemingly superhuman resilience, and an eerie sense that his story is part of something much bigger. When Bruce Willis’ David Dunn shows up in the final scene, confirming that Split is secretly a sequel to Unbreakable, the entire film shifts from a self-contained thriller to a groundbreaking expansion of Shyamalan’s own superhero mythology. It’s a masterstroke of storytelling, a twist so unexpected yet seamlessly woven into the narrative that it doesn’t just change Split—it changes the way we see Unbreakable, proving Shyamalan’s ability to surprise is as sharp as ever.