It is about a true story, but most of the movie is telling a false story. During a movie there is some narrator interupting to explain some expressions, which seemed like comercials in the middle of a movie.
Ending is very simple and nonrelated to whole movie, and not explaining what happened to main characters afterwards, like it is a case in all movies based on a true story. Therenare also some mistakes mentuoned earlier in reviews, if a guy loses a finger it showa up later in a movie, and talking to a mobile phone on one ear, then from other angle showing it on tanother ear even though the character did not move it at all.