Bullitt is a 1968 American neo-noir action thriller film directed by Peter Yates and produced by Philip D'Antoni. The picture stars Steve McQueen as the title character, San Francisco police detective Frank Bullitt, who pursues a group of mobsters after they kill the witness he's been assigned to protect. The cast also features Robert Vaughn, Jacqueline Bisset, Don Gordon, Robert Duvall, Simon Oakland and Norman Fell. The screenplay by Alan R. Trustman and Harry Kleiner was based on the 1963 novel Mute Witness by Robert L. Fish, under the pseudonym Robert L. Pike. The film was made by McQueen's Solar Productions company, with his partner Robert Relyea as executive producer. Lalo Schifrin wrote the original jazz-inspired score.

The action film is a film genre that predominantly features chase sequences, fights, shootouts, explosions, and stunt work. The specifics of what constitutes an action film has been in scholarly debate since the 1980s. While some scholars such as David Bordwell suggested they were films that favor spectacle to storytelling, others such as Goeff King stated they allow the scenes of spectacle to be attuned to story telling. Action films are often hybrid with other genres, mixing into various forms ranging to comedies, science fiction films, and horror films.