So, let’s remember, the metaphor in play in The Poseidon Adventure is “the world is upside-down.” The important thing to remember about this metaphor is that it’s already in play before the ship turns upside-down. That is, the world is already upside-down for the characters on the Poseidon, the tidal wave only serves to make the metaphor literal.
Todd Alcott is a screenwriter living in Los Angeles with his wife and his kids and his cats and his dogs. He has worked on many feature films and has sometimes been credited for thus. You may have seen one.