One of the best cold weather films ever.
I wasn't expecting much with this DVD and picked it up on a discount. What a surprise! It's an A-grade classic. Better IMHO than "The High and the Mighty." It's one of the very few films that really bring across deep cold and what it's like to fly in the extreme north. The snow is of course mostly fake and the FX are lame, but the acting and filmmaking are so good they bring home what forty below or more means.
I've felt those kinds of temps up here in the winter and I get the chills watching this film. It's the kind of cold that renders technology useless and begins to play havoc with our understanding of how things function.