Directed by:
Martin Scorsese
Starring:
Leonardo DiCaprio .... Billy Costigan
Matt Damon .... Colin Sullivan
Jack Nicholson .... Frank Costello
Mark Wahlberg .... Dignam
Martin Sheen .... Oliver Queenan
Alec Baldwin .... Ellerby
The Departed is a remake of a chinese movie called "Infernal Affairs", 2002.
For more info visit
http://www.imdb.com/title/tt0338564/