Which website are you talking about, coldwaterthemovie.com? That's the producer's site.
The movie is fiction based on reality. It's very like Marshal Mathers' depiction of Rabit in the movie 8 Mile. There is no Rabbit, no little sister, none of the characters are real characters. But 8 Mile is real and so are rap duels and street brawls and beat-downs and drunken mothers with abusive boyfriends.
I've never been in the area of 8 Mile, on either side. But from what I hear from friends who know the area, this fictional story gave a pretty good and thoughtful depiction of life there. If Coldwater comes as close as that, I'm a happy camper.
"People think it must be fun to be a super genius, but they don't realize how hard it is to put up with all the idiots in the world."
"Isn't your pants' zipper supposed to be in the front?"
--Hobbs to Calvin