Deliberate "mistake": The same scene of William Bendix at bat swinging and missing is used repeatedly in the film.

Deliberate "mistake": William Bendix is taking the train from Boston to New York. There is a shot of the Southern Pacific Coast Daylight passing by a grove of eucalyptus trees in California, followed by a scene on board the train with a reference to Westport. It may take a railfan to distinguish between the Coast Daylight of the Southern Pacific and the Yankee Clipper of the New Haven Railroad, but it doesn't take a railfan to know that there are no eucalyptus trees in Connecticut.