The Poseidon Adventure (1972)

We kick off Moist Boi Summer™ by booking two tickets on 1972's The Poseidon Adventure. A an aging ship on its last voyage is hit by a massive wave that causes it to turn complete upside down. Those that remain alive have two choices, wait for help to arrive or to try to work their way to the bottom (now top) of the ship as it is rapidly sinking into the ocean...