I saw a film of this title way back in the 50s - one of those supporting 'B' movies. I have never seen it again nor have I seen it advertised, so I don't even know whether it is still in existence. I seem to remember that the action took place in the South American jungle, where a party of intrepid hunters/adventurers/soldiers of fortune, had to battle the elements, disease, dangerous animals etc, the worst danger being possible attacks by fierce native tribesmen, who donned jaguar skins - including the claws - and ripped their enemies to pieces. Just as well this movie was in b/w! I well remember the fatal claw marks across people's chests. I didn't remember Sabu in the film I saw, but then the old memory is very hazy now. There is a 1957 film of the same name, but that is only a short. I remember being terrified by this film, which gave me nightmares at the age of eleven.