It was either a book or a short story; I’m not sure which. I was about twelve years old when I read it, so about 1975ish. It was about an explorer, or perhaps a prospector, who is isolated in a frigid arctic-type environment with a dog. He is near death and his hands are almost frostbitten. So he kills his dog, slices open the dog’s belly, and inserts his hands deep into the dog’s innards to warm them up and prevent them from becoming completely frostbitten. Since to the best of my memory I’ve never read Call of the Wild, I thought maybe it was that, but I looked it up and there’s no mention anywhere of such a scene. Anybody know what I’m talking about?
In London’s To Build a Fire, the man tries to kill the dog but is unable to. Otherwise, it is pretty similar.
Sounds like To Build a Fire by Jack London
In London’s short story To Build a Fire a man tries to do that, but the dog eludes him.
It must have been Rio, by Duran Duran.
Not even close to the way I remember it (the way I recall it, he actually carried out the deed) but that’s gotta be it. Thanks.
Are you sure it wasn’t The Empire Strikes Back? 
ISTR that he describes the intention so well vividly that it imprints on the brain. yes, I forgot the dog survived too - until I saw the film.