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Split is doing well at the box office around the world, but it misrepresents people with dissociative identity disorder (DID; previously called multiple personality disorder). The trailer is particularly gripping, luring in audiences by depicting a man with DID kidnapping and preparing to torture three teenage girls. Kevin (played by James McAvoy) juggles 24 personalities that are based on stereotypes: a cutesy 9-year-old infatuated with Kanye West, a flamboyant designer, and the “Beast,” a superhuman monster who sees the girls as “sacred food.” Kevin falsely represents people with DID through exaggerated symptoms, extreme violence, and unrealistic physical characteristics. The senior author, an expert in DID, has not seen any DID patient who is this violent in 25 years of clinical practice. Kevin’s ghastly personalities are so over-the-top that terrifying scenes are making audiences laugh.
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Bethany L. Brand