gavin6942 When a group of isolated people in the Greek mountains set off a cave explosion, they are menaced by an invisible shrieking dinosaur that had been buried for eons.As it happens, director José Antonio Nieves Conde was fairly prolific from the 1940s through the 1970s. Unfortunately, he was mostly prolific in Spain, and therefore little known in the United States. I wonder what other gems he has to offer and how easy they would be to track down...This film also features the debut of Ingrid Pitt, which has to be worth something. This is a cheap horror film (invisible dinosaurs are about as inexpensive as it gets), but having Pitt in there makes it quite important in retrospect...

wbswetnam The Sound of Horror is a mid-60s Spanish horror film set in Greece. Some men are looking for buried treasure after obtaining both halves of a secret treasure map which leads them to an old cave. After blowing up portions of the cave, they discover a mummy, a skeleton, and some semi-petrified dinosaur eggs. One of the eggs hatches to produce a transparent dinosaur-like monster which terrorizes the men and the ladies. Not content to stay in its cave, the monster roams around and attacks the cabin where the people are staying.The suspense factor is actually not bad, I'll give the suspense factor a six. The special effects are awful though. There are a couple of brief flashes of the monster (it looks like a plastic Godzilla model picked up at a discount toy store) and stop-motion effects to show the footprints of the monster walking through the flour. Finally, the monster shrieks sound like a person going "AAAAAHEEEAAAAAHH" and nothing more. Anyway the monster gets one star.The stunningly beautiful Soledad Miranda, however, gets a solid eight just for the Greek dancing and standing around looking so pretty. Overall, not bad, I give it a four.

altair42002 This was included in the "tales of terror" box set so I wasn't expecting anything fantastic. I was not disappointed. The director was clearly trying to save money on the fx by making the monster invisible and by filming in the middle of nowhere and claiming they were in Greece. Judging by the locations, this could have been filmed in Arizona or Mexico. On another subject, who in there right mind would name their child Caliope?? Not only did she have a stupid name, she has to be one of the ugliest women I've ever seen (could she be Keith Richards sister??). I had to cheer the monster when he found her as his next victim. One funny line is before they try to leave one guy says "I put Calliope in her bed, we can send someone to bury her when we get to town".

Michael_Elliott Sound of Horror (1961) ** (out of 4) A group seeking a buried treasure accidentally cracks open a prehistoric egg, which lets loose an invisible dinosaur like creature. Pretty soon the humans are trying to survive yet they can't run away because they have no idea where the creature is. Many low budget movies are beaten to death by critics because of how "fake" the monsters look so with that in mind this film is actually pretty smart. Instead of turning in a bad looking monster we just don't get a monster at all. The idea of an invisible monster is actually a very good one but sadly the film goes on too long, which eventually makes it boring. Had the movie ran seventy-five minutes or less then this would have been a cult classic but the extra running time just makes it rather hard to sit through. The film is best remembered for featuring a young Ingrid Pitt and Soledad Miranda, two actresses who would become known for their work with Hammer and Jess Franco.