The Disney people present a live-action adaptation (by Jeanne Rosenberg, Nick Thiel, and David Fallow) of the Jack London novel. Not very much of London’s Marxist analysis of animal exploitation remains, but the story that emerges is watchable and well told. A city boy (Dead Poets Society’s Ethan Hawke) goes on a dangerous search through the Alaskan wilderness for his father’s gold mine, accompanied by a guide (Klaus Maria Brandauer) and an old codger (Seymour Cassel). Eventually he encounters and befriends the half-wolf, half-dog of the title, gradually winning its confidence after the animal has been abusively trained as a fighting dog. The settings are beautiful, and a fair amount of emotion is milked out of the romance between boy and dog. Randal Kleiser directed; James Remar and Susan Hogan costar. (JR)