In the movie, Jack is a third-class passenger on the Titanic who sneaks his way up to first class with the hopes of never getting caught. In the real disaster in 1912, third-class passenger Hilda Maria Hellström really did sneak up to first class out of curiosity and never got caught, although she was in her third-class cabin when the Titanic hit an iceberg and ended up surviving the sinking by boarding one of the last lifeboats to leave, Collapsible C.

Film

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