On this day in movie history - The Departed (2006):

The Departed,

directed by Martin Scorsese,

written by William Monahan,

was released in the United States on October 6, 2006.
Inspired by the movie Infernal Affairs (2002), directed by Andrew Lau and Alan Mak.
Music by Howard Shore.

Cast:
Leonardo DiCaprio, Matt Damon, Jack Nicholson, Mark Wahlberg, Martin Sheen, Ray Winstone, Vera Farmiga, Alec Baldwin, Anthony Anderson, Kevin Corrigan, James Badge Dale, David O'Hara, Mark Rolston, Robert Wahlberg, Kristen Dalton, Amanda Lynch, Shay Duffin.