During the entire film the bear cubs never grow. You can also see collars on both bears. The American Humane Asso. would have never let a lot of the animal action take place. But the year here was no ASPCA.
Black bears do not inhabit the Colville River region of northern Alaska. They are primarily forest dwellers, and the farthest north they have ever been observed co-mingling with grizzlies and polar bears is at Wapusk National Park, Manitoba, Canada, west of Hudson's Bay.