Plot hole: Shortly after the ship flips over, the steward, Acres, is asked why lights are on. He explains they are emergency lights that will last three hours. The lights are left on throughout the movie, but when they get out it is bright daylight. Considering the ship flipped at midnight, there is nowhere on any ocean where it gets light at 3:00 in the morning.
The Poseidon Adventure (1972)
1 plot hole
Directed by: Ronald Neame
Starring: Gene Hackman, Leslie Nielsen, Ernest Borgnine, Shelley Winters, Red Buttons, Stella Stevens, Carol Lynley
Continuity mistake: Gene Hackman and John Shea are both doused with water when they come out of the restroom. In the next shot, their hair is completely dry.
Mrs. Belle Rosen: You see, Mr. Scott? In the water I'm a very skinny lady.
Trivia: The look of the set for the upside down engine room was so real, the actors refused to climb anything, fearing that it would fall. The set designer and builders had to climb it first to prove it would hold.
Question: Why did Jack Albertson hate working with Shelley Winters when making this movie?
Answer: There's nothing specific reported about them, but other actors have also expressed disliking working with Shelley Winters. Stella Stevens, who was also in Poseidon, mentioned not getting along with Winters on another movie they made together because she was drinking at the time. Winters had a rather ditzy and brash personality that annoyed some people, which is probably what Albertson was referring to.
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Moreover, Albertson once said, "The happiest moment making the movie for me was when she died."