Detective Films with a Twist of Dissociative Identity Disorder

Description: This film, based on a true story, explores the life of a woman with three distinct personalities, providing one of the earliest cinematic looks at dissociative identity disorder.

Fact: Joanne Woodward won an Academy Award for Best Actress for her portrayal of Eve.

Description: A young altar boy is accused of murdering an archbishop, and his defense attorney discovers he has an alternate personality that might be responsible for the crime.

Fact: Edward Norton won a Golden Globe for his role, which was his film debut.

Description: This cult classic delves into the life of an insomniac office worker who forms an underground fight club with a soap salesman, only to discover the salesman is a figment of his own imagination, showcasing a severe case of dissociative identity disorder.

Fact: The film was initially banned in several countries due to its violent content. The twist ending was kept a secret from most of the cast and crew until the film's release.

Description: A psychotherapist enters the mind of a comatose serial killer to find the location of his latest victim, encountering his various personalities in a surreal, dream-like landscape.

Fact: The film's visual effects were groundbreaking at the time, earning an Academy Award nomination for Best Visual Effects.

Description: Ten strangers are brought together at a remote motel during a storm, only to realize they are all connected through a man with multiple personalities, each representing a different aspect of his psyche.

Fact: The film's twist ending was inspired by the Agatha Christie novel "And Then There Were None."

Description: A ballerina's obsession with perfection leads her into a psychological spiral where she starts to lose her grip on reality, displaying symptoms of dissociative identity disorder.

Fact: Natalie Portman underwent extensive ballet training for the role, losing 20 pounds to portray the physical demands of the character.

Description: U.S. Marshal Teddy Daniels investigates the disappearance of a patient from a psychiatric hospital, only to uncover a web of deceit and his own dissociative identity disorder.

Fact: The film was shot on location at the old Medfield State Hospital in Massachusetts, adding to its eerie atmosphere.

Description: A charming yet disturbed factory worker converses with his pets, who give him conflicting advice, leading to a dark comedy exploration of his multiple personalities.

Fact: Ryan Reynolds performed all his own singing in the film, showcasing his musical talents.

Description: After three girls are kidnapped by a man with 23 distinct personalities, they must find a way to escape before a terrifying 24th personality emerges.

Fact: The film was initially conceived as a standalone story but was later revealed to be part of M. Night Shyamalan's "Eastrail 177" trilogy, connecting it to "Unbreakable" and "Glass."

Description: Christian Bale stars as Trevor Reznik, a machinist who hasn't slept in a year, leading to a psychological breakdown where he starts to question his own identity and reality, hinting at dissociative identity disorder.

Fact: Bale lost over 60 pounds for the role, showcasing his dedication to portraying the character's physical and mental deterioration.