Dirty Harry would love 'Gangster Squad,' a movie about cops who operate so far outside the law they make Clint Eastwood's signature detective look like a pencil-pushing dweeb. Assembled by LAPD police chief Bill Parker (Nick Nolte), and supposedly inspired by a true story, the members of the so-called Gangster Squad operate as judge, jury, and executioners. They don't arrest their targets; they "wage war" against their enemy, mob boss Mickey Cohen (Sean Penn). In their quest to bust up Cohen's rackets, the Gangster Squad brandishes about a billion guns and not a single badge. Hell, even Dirty Harry waited until the end of his movie to toss his away.