Mystic River is a 2003 American mystery crime drama film directed and scored by Clint Eastwood. It stars Sean Penn, Tim Robbins, Kevin Bacon, Laurence Fishburne, Marcia Gay Harden, and Laura Linney. The screenplay by Brian Helgeland was based on the novel of the same name by Dennis Lehane. The film was produced by Robert Lorenz, Judie G. Hoyt and Eastwood. It is the first film on which Eastwood was credited as composer of the score.
The film opened to widespread critical acclaim. It was nominated for Academy Awards for Best Picture, Best Director, Best Actor, Best Adapted Screenplay, Best Supporting Actress, and Best Supporting Actor. Sean Penn won Best Actor and Tim Robbins won Best Supporting Actor, making Mystic River the first film to win both awards since Ben-Hur in 1959.