THE BIG HEAT (1953) is a film-noir classic featuring Glenn Ford and Gloria Grahame in the lead roles, with a very young Lee Marvin playing a mobster.

Glenn Ford plays Det. Sgt. Dave Bannion, the straight arrow who refuses to back down when his investigation into the suicide of a fellow police sergeant upsets the mob boss Mike Lagana who has the police commissioner Higgins as well as the Bannion's boss Lieutenant Wilks in his pocket.

The movie opens with a bang, literally