The Big Night is a 1951 American film noir directed by Joseph Losey, that features John Drew Barrymore (credited as "John Barrymore, Jr." in his first starring role), Preston Foster and Joan Lorring. The feature is based on a script written by Joseph Losey and Stanley Ellin, based on Ellin's 1948 novel Dreadful Summit. Hugo Butler and Ring Lardner, Jr. also contributed to the screenplay, but were uncredited when the film was first released owing to his Hollywood Ten conviction.

Robert Aldrich, who had been an assistant director on other films directed by Losey, also has a brief uncredited appearance in a scene at a boxing match. In a scene that prefigures 1976's famous routine from Taxi Driver, Barrymore challenges himself in a mirror brandishing a revolver to practice his menace.