Directed by John Sturges, the 1955 film Bad Day at Black Rock is a renowned "sun-blasted noir" that addresses post-WWII American racial prejudice and communal guilt. Featuring Spencer Tracy as a one-armed veteran exposing a town's dark secret, the film is noted for its use of CinemaScope and its critique of post-war social issues. For an in-depth analysis of the film's background, visit Britannica . John Sturges’ BAD DAY AT BLACK ROCK (1955)