Hostage is a 2005 thriller film with Bruce Willis that was directed by Florent Emilio Siri. The film was based on a novel by Robert Crais, and was adapted for the screen by Doug Richardson.
The film's plot is roughly the same as the novel; the main difference is that a complicated subplot involving the Mafia was removed and the ages of the first group of hostage-takers was lowered slightly. In the novel, Smith's employer is Sonny Benza, a crime overlord whose influence reaches throughout the entire West Coast.