Beyond the Poseidon Adventure

Beyond the Poseidon Adventure (1979) is a action, adventure, drama directed by Irwin Allen rated 5.0/10.

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.