Other mistake: While Casey was holding the pin she would bump into things and fall in her house. OK that makes sense. However, when she reached the city, how was she walking down steps that are not really there? She should be floating in the air or something.
Tomorrowland (2015)
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Directed by: Brad Bird
Starring: George Clooney, Judy Greer, Hugh Laurie, Britt Robertson, Kathryn Hahn, Raffey Cassidy
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Trivia: When Casey enters the shop, the female store clerk is watching the TV. On top of the TV is a piece of memorabilia from The Iron Giant. The director of Tomorrowland, Brad Bird, also directed The Iron Giant.
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Answer: He was using it as a metaphor. The Titanic being mankind heading towards its own destruction. Man was warned of the dangers (wars, global warming, etc) and we didn't do anything to change our ways, "went full stem ahead".
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