For a movie that's intended to be a drama, The Poseidon Adventure sure is funny. Blame it on the steeped-in-'70s production design, the extreme scenery chewing on the parts of both Ernest Borgnine and Gene Hackman (who spend half the movie screaming at each other), or the fact that Leslie Nielsen is playing the straight man Captain.
The poster for this 1972 disaster flick tells you all you need to know about the plot: "At midnight on New Year's Eve, the S.S. Poseidon was struck by a 90-foot tidal wave and capsized." With all of the ship's celebrants making merry in the dining room, the rogue tsunami turns their celebration upside down. Climbing through the bowels of a luxury ocean liner may not seem like an ideal way to spend the holiday, but it certainly makes for a memorable way to welcome the new year!