"Below Zero, as its name implies, was filmed entirely at temperatures which varied between —5° and —32°. The film was made, at Chapeau de Paille, over the Lincoln's Birthday week-end of 1940, and during one of the nights that the producer spent there, the mercury dropped to —42°. Chapeau de Paille is the 'Headquarters Depot' of one of the largest logging-operations in Northern Quebec, in the 'Haute Mauricie'. This short bit, in color, gives some slight idea of another, longer, film (in black and white) entitled, 'Life in the Northern Bush', which follows the activities of the Lumber-jack, through the seasons, from the first cutting in the fall until the next summer, when the logs are delivered at the mills" ("Program Notes," 1940).
"Program Notes," Eleventh Annual International Show of Amateur Motion Pictures (1940), Margaret Herrick Library.