I’ve tried googling this film so many times and never had an answer. I remember watching a film when I was a child (would have been early 90s maybe but I think it was an old film then) about a group of people who are lost up a mountain. One of the group is an opera singer with a super loud voice and I think it’s known that he could shout for help and someone would hear but that it would wreck his voice forever. At the end of the film they decide he has to do the big shout, he does it, ruins his voice and then they discover a group of rescuers were already on their way and he ruined his voice for nothing. Did I dream this film?!!