Director Martin Scorsese returns to his trademark style with the violent, bruised, and bloody feature THE DEPARTED. Scorsese filched the basic storyline from Wai Keung Lau and Siu Fai Mak's masterful 2002 Hong Kong action film, INFERNAL AFFAIRS, which saw a policeman going undercover as a mob member and a mob member infiltrating the police force. Scorsese transfers the action to Boston, positioning Leonardo DiCaprio as undercover cop William Costigan and Matt Damon as undercover mobster Colin Sullivan. While Costigan and Sullivan get into plenty of nail-biting situations that almost reveal their true identities, Scorsese gradually unravels his strong supporting cast, including Jack Nicholson as Sullivan's mob boss, Frank Costello; Ray Winstone as Costello's meat-headed muscle; Mark Wahlberg as a hot-headed police sergeant; and Vera Farmiga as a love interest for both Damon and Di Caprio's characters.