Curiosidades

Many of the dogs in this movie later went on to appear in Resgate Abaixo de Zero (2006).

James Coburn died November 18, 2002, exactly 10 months after the film's release.

Trainers stood off-camera using a combination of hand signals and verbal cues to get the dogs to achieve lots of action throughout the film such as barking, growling, lying down, sitting, standing, and even digging. In one scene, a dog called Scooper begins to dig in the snow as the other dogs lie in the snow and enjoy a much-deserved rest. The dog finally digs up a flask. A trainer buried some treats in the snow near the flask and used a hand signal from off-camera to get the dog to begin digging. Once the dog got scent of the treat, the rest of the scene came naturally to the pooch. After the scene was filmed, the other dogs also received edible rewards for a job well done.

Demon, Yodel and Sniff, Mack and Diesel, Scooper, Duchess are all Siberian Huskies. Nana is the only one of Lucy's dogs not to be a Siberian Husky, she's a Border Collie.

Ted enters his first Alaskan bar and sees a dog sitting in a booth inside licking some beer out of the glass belonging to the man next to him. The beer was actually chicken broth. Soon, the intimidating sled-racing champ Thunder Jack (James Coburn) enters the bar, causing the beer-swilling canine to cower underneath the table. A trainer off-camera cued the dog to cower and rewarded the animal with a treat.