Where the Sidewalk Ends (1950)
Otto Preminger's 1950 film noir with Dana Andrews. Detective accidentally kills suspect then frames innocent man.
Dana Andrews played the detective in Laura who falls in love with a portrait of a woman he believes is dead, and The Best Years of Our Lives gave him a returning bombardier reduced to a soda counter job. He was a serious alcoholic who later made public service films about it, which was unusual for a star of his standing.