actors:
- Hackman, Gene = Rev. Frank Scott
- Borgnine, Ernest = Det. Lt. Mike Rogo
- Red Buttons = James Martin
- Lynley, Carol = Nonnie Parry
- McDowall, Roddy = Acres
- Stevens, Stella = Linda Rogo
- Winters, Shelley = Belle Rosen
- Albertson, Jack = Manny Rosen
- Martin, Pamela Sue = Susan Shelby
- O'Connell, Arthur = Chaplain John
- Shea, Eric = Robin Shelby
- Sadoff, Fred = Mr. Linarcos
- Allen, Sheila = Nurse Gina Rowe
- Arvan, Jan = Dr. Caravello
- Webster, Byron = Purser
At midnight on New Years Eve the S.S. Poseidon is struck by a 90' tidal wave and is capsized. The Reverend Frank Scott leads nine Survivors; an elderly couple, Manny and Belle Rosen headed to Israel to see their grandson; A New York detective and his ex-prostitute wife, Mike and Linda Rogo on their second honeymoon to Italy; A young brother and sister, Robin and Susan Shelby going to meet their parents in Greece; A haberdasher James Martin; a pop singer Nonnie Parry, and a waiter from the ship Acres. They travel from the grand ballroom struggling through, steam, fire and rising water in the up-side-down ship to reach the bottom (the propeller shaft), now the top.
taglines:
At midnight on New Year's Eve the S.S.Poseidon was struck by a 90 foot tidal wave and capsized
Combining the talents of fifteen Academy Award Winners
Hell, Upside Down
Who will survive-in one of the greatest escape adventures ever!