Wow it is crazy I found this because the other day I was actually arguing with someone in my art class the other day. Definatly Dissociative personality disorder. I would have to say it was personality and amniesa. He didn't dissacocate from reality when his other personality took over he just couldn't rember anything. I love the movie one of my personal favorites. Everyone I meet thinks it's schizophrenia..I get in a debate with most of the people I watch it with.