There is a movie from the '50s which has a scene with two men sitting around a fire in a cave. One of the men reveals that he is actually a Yeti. Although he is shaven, with a haircut, he opens his collar to show a chest full of dense snow white hair. He hates his companion because they are different species and is about to kill him. The scene fades to black and the murder isn't shown.
Hope this meager description will be enough for someone to identify this movie for me.