Robert Mitchum said the snowy location scenes were the hardest he had ever filmed.

William A. Wellman had always intended to direct what he described as a black and white movie in color.

Carl 'Alfalfa' Switzer was only 26 when he played the elderly Joe Sam.

Director William A. Wellman later said it had been a mistake not to show the cat at all in the film.

Average Shot Length = ~10 seconds. Median Shot Length = ~9 seconds.