The Stranger Wore a Gun (1953)
A former spy moves to Arizona to join a gold robbery, but when he gets there decides that its not for him and tries to change his life
Them! (1954)
The earliest atomic tests in New Mexico cause common ants to mutate into giant man eating monsters that threaten civilization
Riding Shotgun (1954)
When a stagecoach guard tries to warn a town of an imminent raid by a band of outlaws, the people mistake him for one of the gang
So This Is Love (1953)
Biopic of opera star Grace Moore, who was killed in a plane crash in 1947