Appaloosa is a 2008 American Western film based on the 2005 novel Appaloosa by crime writer Robert B. Parker. Directed by Ed Harris and co-written by Harris and Robert Knott, Appaloosa stars Harris alongside Viggo Mortensen, Renée Zellweger and Jeremy Irons. The film premiered at 2008 Toronto International Film Festival and was released in selected cities on September 19, 2008, then expanded into wide-release on October 3, 2008. This movie has won four different awards, including the Western Heritage Award in 2009.

Edward Allen Harris is an American actor and filmmaker. His performances in Apollo 13 (1995), The Truman Show (1998), Pollock (2000), and The Hours (2002) earned him critical acclaim and Academy Award nominations.