imagine and you have 90 minute to fill by mean of a movie . this movie be suppose to be a thriller and black humoured and exciting and deep in character . you have five main character and a couple of support character and now and please press all of them into these 90 minute and include a background story about each of them . the result be a movie like best men with a challenge idea stand at the beginning and apart from that and over load with characterization create along one of those book on how to write a damn good screenplay . the dialogue lack idea because there be no time to develop them and so they have to be reduce to standard phrase . if stretch and however and they would be bore . another result be that the character all have exciting and heart rending past but regard their present situation they remain flat . maybe they have well not try to realize that attractive idea .