Iv got that movie in my collection Bob, it's one of my favourites because i used to breed Malamute's, lovely dog's!
Most of these movie's are derived from the original ( cant remember the name right now ) where the Japanese left there dog's behind and chained up because it was to costly to remove them, most of the dog's broke free and survived on there own for a year before the Japanese returned and to there amazement the dog's were alive and actually came running down to greet them ( like they deserved any happy greeting ) the dog's should have eaten them