The Atlantis Interceptors (1983)

An ancient Atlantean relic is discovered on the ocean floor near a sunken nuclear submarine, which triggers a violent set of events that sees a couple of scientists teaming up with a few mercenaries to survive the onslaught that follows. Original title: I predatori di Atlantide Director Ruggero Deodato Writers Tito Carpi Vincenzo Mannino Stars Christopher Connelly Gioia Scola Tony King