French connection an seven ups for a change,mean streets also..just watched killing me softly few days ago its ok..i like state of grace with shawn pen,and sleepers..they are not really mafia movies but are related..if your talking about real mafia movies i would have to say goodfellas...ive seen the icemen about richard kuklinski is so bad and boaring,cant belive you can screw up roy demeo like that,but i seems it can be done