Crimson Tide is a 1995 submarine film directed by Tony Scott, produced by Don Simpson and Jerry Bruckheimer, and written by Michael Schiffer and Richard P. Henrick. It takes place during a period of political turmoil in the Russian Federation, in which ultranationalists threaten to launch nuclear missiles at the United States and Japan. It focuses on a clash of wills between the seasoned commanding officer (Gene Hackman) and executive officer (Denzel Washington) of a nuclear missile submarine, arising from conflicting interpretations of an order to launch their missiles.

The film was scored by Hans Zimmer, who won a Grammy Award for the main theme, which makes heavy use of synthesizers in place of traditional orchestral instruments.