As he navigates the treachery of the Atlantean court—specifically the power-hungry and the wicked sorcerer Zaren —he discovers that Atlantis has developed advanced, futuristic technology. This includes "fire crystals" that harness solar energy to power devastating death rays, which the leadership intends to use for world conquest. The 1961 Context and Themes
The specific file string you mentioned ( Atlantis,.the.Lost.Continent.1961.720p ) refers to a high-definition digital rip of the film. Finding subtitles for this version is generally straightforward on major archival sites, as the film has a dedicated following among fans of vintage sci-fi and fantasy.
The story follows , a young Greek fisherman who rescues a stranded princess, Antillia , at sea. He agrees to sail her back to her homeland, which turns out to be the fabled continent of Atlantis. Upon arrival, Demetrios is enslaved and forced into a series of gladiatorial trials, including a fight for survival in the "Pit of Doom."