This curated list of 10 sci-fi films explores the complex theme of dissociative identity disorder (DID), blending psychological depth with imaginative storytelling. These movies not only entertain but also provide a nuanced look into the intricacies of the human psyche, making them valuable for viewers interested in both science fiction and psychological themes.

Fight Club (1999)
Description: While not explicitly about DID, the film's protagonist experiences a form of dissociative identity, creating an alter ego, Tyler Durden, to escape his mundane life.
Fact: The film was initially banned in several countries due to its violent content and themes.


The Cell (2000)
Description: A psychologist enters the mind of a comatose serial killer, encountering multiple personalities, showcasing DID in a surreal, sci-fi setting.
Fact: Jennifer Lopez's performance was critically acclaimed, earning her a nomination for the Saturn Award for Best Actress.


The Machinist (2004)
Description: The film explores the psychological breakdown of a man suffering from insomnia, with elements that could be interpreted as DID or extreme dissociation.
Fact: Christian Bale lost over 60 pounds for his role, showcasing his dedication to the character's physical and mental state.


Synecdoche, New York (2008)
Description: This film delves into the life of a theater director whose reality blurs with his creation, exploring themes of identity and dissociation.
Fact: The film was written and directed by Charlie Kaufman, known for his complex narratives.


Black Swan (2010)
Description: Although primarily about ballet, the protagonist's mental breakdown includes elements of DID, as she struggles with her identity and the role she must embody.
Fact: Natalie Portman won an Academy Award for Best Actress for her role.


The Double (2013)
Description: A man's life spirals when he meets his doppelgänger, exploring themes of identity and dissociation in a Kafkaesque setting.
Fact: Jesse Eisenberg plays both the protagonist and his double, showcasing his versatility.


Split (2016)
Description: A man with 23 distinct personalities kidnaps three girls, showcasing DID in a thriller context with sci-fi undertones.
Fact: James McAvoy was praised for his portrayal of multiple personalities.


Glass (2019)
Description: A sequel to "Split," this film further explores DID through the character of Kevin Wendell Crumb, now in a comic book-like universe.
Fact: It's part of M. Night Shyamalan's "Eastrail 177 Trilogy."


The Lighthouse (2019)
Description: While not directly about DID, the film's psychological horror elements include themes of identity loss and mental dissociation.
Fact: The film was shot in black and white, adding to its eerie, timeless feel.


Enemy (2013)
Description: This film features a man discovering his exact double, leading to a psychological exploration of identity and dissociation.
Fact: It's based on the novel "The Double" by José Saramago.
