English title: The Raiders of Atlantis / Atlantis Interceptors
Ruggero Deodato
(credited as "Roger Franklin")
A twelve thousand year old Atlantean relic is discovered on the ocean floor near a sunken nuclear submarine, which triggers a tragic set of events that sees a couple of scientists teaming up with two mercenaries and some survivors of a cataclysm, fights a kind of possession that turns humans into bloodthirsty Atlanteans.