Factual error: Raymond is equipped with what is described as a high-power Soviet sniper rifle. However, the rifle he uses is actually a Japanese carbine.
Continuity mistake: Mary gets out of her car at the gas station wearing white shoes, but when she is being shown her room at the boarding house by Mrs Thomas she is wearing black shoes. This also happens at other times during the film, where Mary's shoes change from white to black and vice-versa.