Ever wondered about the struggle for some"one" living the life with multiple personalities? This movie can educate you quite a lot. This is not at all what it is like for everyone. Everyone is unique, but what you will see is the struggle to cope and the creative measures some people may go to to express ALL of who they are. You will also see the extreme they may go to when it doesn't work for everyone inside.
I've worked with quite a lot of "multiples." Someone did their homework for this movie. A lot of effort went into showing this possible truth.
If you know someone with multiplicity, do not be afraid just because they are a multiple, based on what you see in this movie. Use it to develop understanding. Get to know who they are, just like you got to know your classmates in school each year. It can be that simple.