A dynamite cast shines in director Martin Scorsese’s crackling remake of Infernal Affairs. Leonardo DiCaprio stars as a cop deep undercover in Boston kingpin Jack Nicholson’s Irish mob. Matt Damon plays a detective who works for Nicholson who tips him off to the police’s every move. As Damon’s superiors (played to the hilt by seasoned pros Alec Baldwin, Martin Sheen and Mark Wahlberg) get closer to nailing Nicholson, DiCaprio’s true identity gets more jeopardized until the finale when everybody shoots everybody else to cover their own ass. Scorsese’s use of expert camerawork, great Stones’ songs and crackerjack editing showcase that the master hasn’t lost his touch when it comes to gritty urban crime melodramas. And while it suffers from overlength and a drawn out love interest subplot, it’s still easily Scorsese’s best movie in a decade. The cast are all aces with Nicholson stealing every scene and taking great delight in chewing the scenery like only his Jackness can. After Gangs of New York and The Aviator, this was the third teaming of DiCaprio and Scorsese, making DiCaprio the heir apparent to Robert DeNiro as Scorsese’s full time leading man.