The Departed

The Departed is a 2006 American crime drama thriller movie. It is directed by Martin Scorsese and written by William Monahan. The movie stars Leonardo DiCaprio, Matt Damon, Jack Nicholson, Mark Wahlberg, Martin Sheen, Ray Winstone, Vera Farmiga, Anthony Anderson and Alec Baldwin. It was very successful, getting positive reviews and $289.8 million in the box office as well as winning four Academy Awards. It is a remake of the 2002 Hong Kong movie "Infernal Affairs".
The movie is set in Boston, Massachusetts. Irish Mob boss Francis "Frank" Costello (Jack Nicholson) plants Colin Sullivan (Matt Damon) as a mole within the police force. At the same time, the police get William "Billy" Costigan (Leonardo DiCaprio) to gain access into Costello's crew. This leads to Sullivan and Costigan each trying to find the other's identity before his own cover is blown.