Factual error: In the poster shot and in the film, the wave from the Atlantic carrying the carrier JFK into a collision with the White House comes crashing in from the west because the south portico of the White House is seen. The Atlantic Ocean is east of Washington, so the wave should come from the other direction. And even a wave coming from the east could not have made the JFK (CV-67) crash into the White House because the carrier was retired in 2005 and is berthed in Philadelphia, which is northeast of Washington DC. (01:30:10 - 01:30:40)

2012 (2009)
Ending / spoiler
Directed by: Roland Emmerich
Starring: Woody Harrelson, John Cusack, Danny Glover, Oliver Platt, Thandie Newton, Amanda Peet, Chiwetel Ejiofor
John Cusack's whole family survives with the exclusion of Scott. Lily no longer needs diapers, and the the arks set sail towards Africa.
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Adrian Helmsley: The moment we stop fighting for each other, that's the moment we lose our humanity.
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Chosen answer: Its a safety device so the ship doesn't put to sea and ends up flooding the ship. The passenger ferry Herald of Free Enterprise capsized in the port of Zebrugge in 1987, precisely because the doors were not shut properly.
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