"The Departed" is a crime thriller film released in 2006, directed by Martin Scorsese. The movie features an ensemble cast including Leonardo DiCaprio, Matt Damon, Jack Nicholson, and Mark Wahlberg.

The story revolves around two men, Billy Costigan (DiCaprio) and Colin Sullivan (Damon), who operate on opposite sides of the law in Boston. Costigan goes undercover as a criminal to infiltrate a powerful Irish mob led by Frank Costello (Nicholson), while Sullivan works as a mole within the Massachusetts State Police, feeding information to Costello.

As Costigan and Sullivan navigate their dual identities, they become entangled in a dangerous game of cat and mouse. Loyalties are tested, and the lines between good and evil blur as the tension escalates. The film is filled with suspense, intense action sequences, and unexpected twists.

"The Departed" garnered critical acclaim and commercial success, winning four Academy Awards, including Best Picture and Best Director for Scorsese. The film is known for its gripping storytelling, strong performances, and its exploration of themes such as identity, loyalty, and moral ambiguity.

If you have any specific questions about "The Departed" or would like to know more about its plot or characters, feel free to ask!