To take down South Boston's Irish Mafia, the police send in one of their own to infiltrate the underworld, not realizing the syndicate has done likewise. While an undercover cop curries favor with the mob kingpin, a career criminal rises through the police ranks. But both sides soon discover there's a mole among them.
Genre: Drama, Thriller, Crime
Cast: Leonardo DiCaprio, Matt Damon, Jack Nicholson, Mark Wahlberg, Martin Sheen
Producer: Howard Shore, Brad Pitt, Martin Scorsese, Brad Grey, Eugene Gearty
IMDb Score: 8.1/10 by 9360 users
Runtime: 151 minutes
Released: 10/5/2006