An incredibly false representation...

Rating: 1/10 (6 May 2017)

Mr. Shyamalan's movie is both incredibly disappointing, and has taken "artistic license" to a whole new level... of disservice.
While "dissociation" is very real, the current professional mental health community is only now beginning to address this VERY real, yet woefully understated, diagnosis.
Dissociative Identity Disorder (DID) is, essentially, a more modern term for what used to be called "Multiple Personality Disorder". Our communities and prisons currently have an incredible number of people tormented by this horrendous disorder... which remains significantly misdiagnosed and untreated, caused in part, by simply experiencing a single, yet impactful, traumatic event.
Want to become somewhat "enlightened"? Do a simple Google search for a string like, "dissociation split movie", and you'll find an abundance of legitimate articles articulating the disservice that Mr. Shyamalan's movie is doing (or has done) to people affected by this disorder, as well as the Mental Health community, at large.
If you have not yet seen this movie, I would strongly encourage you to avoid it!