Benny and Joon - 1993
Joon is very prone to getting in trouble due to her mental illness. She doesn't seem to have a sense of danger or reality.
This movie is about a woman with Schizophrenia who falls in love with a man with a personality disorder. I would rate it an 8.5/10. It is a great movie.
Benny seems to be attracted to Joon because of her mental illness. He doesn't take advantage of her, he encourages her.
Split - 2016
People with DID are not inherently dangerous. Of course it is possible for someone with DID to be homicidal; but, it is not normal.
This movie is about a man with DID (Dissociative Identity Disorder) that kills people. I would rate it a 0/10. This movie is horrible.
This movie did the same thing for people with DID as Jaws did for sharks. It makes them out to be monsters. DID is a mental illness, it doesn't cause murder.