- HD 1080
- Runtime: 114m.
- Status: Released
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- Languages: en
- Country: United States of America
- Director: Irwin Allen
- Stars: Michael Caine, Sally Field, Telly Savalas, Peter Boyle, Jack Warden
- keywords: gold, based on novel or book, plutonium, ocean, 1970s, wave, natural disaster, rescue mission, ocean liner, sequel, disaster, capsized ship, tidal wave, disaster movie
- Production_studio: Warner Bros. Pictures
- Slogan: Before her fate is sealed by the deep, the superliner Poseidon will reveal one last secret.
- The Beyond the Poseidon Adventure is featured in the top rankings of 1979
- #31 in Top Adventure Movies of 1979
- #74 in Top Action Movies of 1979
After "The Poseidon Adventure", in which the ship got flipped over by a tidal wave, the ship drifts bottom-up in the sea. While the passengers are still on board waiting to be rescued, two rivaling salvage parties enter the ship on search for money, gold and a small amount of plutonium.
