* FunnyAneurysmMoment: Not Sure (Luke Wilson) was sentenced to "rehabilitation". In RealLife, Luke's brother [[TearJerker Owen Wilson was rumored to have gone to rehab a couple of times due to depression]].
* HilariousInHindsight: Terry Crews as the President gets everyone's attention by firing a gun. How does he do this later in ''TheExpendables?'' [[{{BFG}} WITH AN EVEN BIGGER GUN.]]
** In the Japanese dub of the film, Creator/ToshihikoSeki voices Joe. The hilarity came with the fact he previously voiced [[Anime/MobileSuitGundamSEED Rau Le Creuset]], another character who wants to do more or less the same plan Joe does in the film, [[OmnicidalManiac except that implies exterminate the whole human race]]. He also voiced [[Anime/MobileSuitGundamSEEDDestiny Rey Za Burrel]], who works with someone who has a less-extreme version of Creuset's plans. This also reachs another layer of hilarity if you know about the [[Anime/MobileSuitGundamSEEDDestiny Destiny Plan]], except in this movie, it's completely goes the opposite way intended and it's ''self-inflicted'' rather than imposed by some BigBad.
* HypeBacklash: Many people make comparisons to this film for everything they see as a "dumb" societal trend, such as the continued popularity of Creator/MichaelBay movies. This scares some people away by making the movie seem very preachy and {{Anvilicious}} when it's really just a goofy, high-concept comedy running on RuleOfFunny. In other words, it's a slapstick comedy that's only loved by pretentious eltists, because it appeals to their sense of pretension at a base level - the "stupid" satire isn't as deep as they believe, as the stupid jokes ''really are stupid jokes.''
** Pointed out quite well [[http://xkcd.com/603/ here.]]
* IdiotPlot: Justified. Only the two characters from the past are of even average intelligence. Even then, Joe is naive and not a natural leader.
* MisaimedFandom: Quite a lot of people take this movie seriously, pointing to the (purported) stupidity of modern pop culture as proof that this movie is a good predictor of the future.
* MemeticMutation:
** "Ah, you talk like a fag, and your shit's all retarded."
** BRAWNDO!
* MST3KMantra: Apparently, there are people who watched this movie and thought it was being as serious as ''Red Dawn'', which, as we all know, was a documentary.
** Same goes for people nitpicking about how it would take longer to get the electrolytes out of the soil, how come people can still ride motorcycles/play guitars/etc.
*** In the case of the guitars, this is what the Army is now teaching in Basic training. Note all of the band is in matching camoflauge, and is supposed to be the modern military. Guitar playing is probably all they do now, so they do that one thing well. To be fair, they play the same riff over and over.....
* NightmareFuel: Comedy though it may be, the dystopia this movie portrays is disturbingly similar to how many people feel every day. Sometimes one can't help but wonder.
* SpiritualLicensee: Considered to be the best film adaptation of ''TheMarchingMorons'' ever made.
* UnfortunateImplications: If this movie weren't a silly comedy and instead had a more serious tone, it would be easy to accuse it of endorsing eugenics.