* BannedInChina: Banned in North Korea, because 2012 marked the 100th anniversary of the birth of First Great Leader Kim Il-Sung.
* CreatorBacklash: Jimi Mistry fully acknowledged that his dialogue was hackneyed and nonsensical, joining Creator/DaraOBriain on-stage to mock how ridiculous "The neutrinos are mutating!" sounds.
* DeletedScene: Scenes were filmed showing [[spoiler: Harry, Adrian's father]] surviving the tsunami - the cruise ship having merely run aground. Also Adrian would have gotten fed up with Anheuser and punched him. Both are included as extras on the DVD.
* ExecutiveVeto: Creator/RolandEmmerich wanted to show the destruction of the Kaaba in Mecca. Producers opposed this, not wanting to offend radical Muslims. There is briefly a shot of the Kaaba during the montage of historical monuments around the world, however.
* FakeAmerican:
** Creator/ThandiweNewton (British) as Laura Wilson, the US President's daughter.
** Creator/ChiwetelEjiofor (also British) as Dr. Adrian Helmsley.
** Liam James (Canadian) as Noah Curtis.
* FakeNationality:
** Jimy Mistry had to fake an Indian accent as Satnam, since he is actually British. Likewise, the actress who played Satnam's wife, Agam Darshi, was born in the UK and raised in Canada.
** The Tibetan monk Nima was played by the Canadian Creator/OsricChau. His brother, Tenzin, was played by the Singaporean Chin Han.
* FakeRussian: Zlatko Buric (Croatian/Danish) as Yuri Karpov, Johann Urb (Estonian-American) as Sasha and Beatrice Rosen (French-American) as Tamara. Also, Zinaid Memisevic (Bosnian) as Sergey Karpenko (Russian president). His interpreter, played by Igor Morozov, is the ''only'' "true" Russian in the movie.
* MoneyDearBoy: When asked on Website/{{Twitter}} why he did this movie, this was basically Creator/JohnCusack's reply.
* ReferencedBy: The January 2011 issue of the Malaysian comic ''Gemeilia - Kokko & May'' (Chinese: 哥妹俩) has a dialogue-free chapter, "2011", which is a shout-out (or a reference) to the film.
* StillbornFranchise: A follow-up TV series was supposed to be made but never materialized.
* WhatCouldHaveBeen:
** Creator/GerardButler was in the running for the role of Jackson but had to turn it down.
** Creator/SethRogen turned down the role of Adrian.
** Mecca and it's monument the Kaaba were intended to be included at some point in the film to be one of the victims of MonumentalDamage, but was ultimately scrapped because Emmerich feared that a ''Fatwa'' would be placed on his head by the entire Muslim population.
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