On an treasure-hunting trip to the Greek islands, a group of explorers finds a perfectly preserved dinosaur egg that, when hatched, unleashes a deadly─and invisible!─beast that can kill with claws and ear-piercing shrieks. Offbeat Spanish shocker stars James Philbrook, Ingrid Pitt (her film debut). AKA: "The Prehistoric Sound," "Sound from a Million Years Ago." 85 min. Standard; Soundtrack: English (dubbed) mono. Dubbed in English. Plays All Regions.