* CastingGag
** Reese Witherspoon, one of the most petite actresses in the A-list, plays the tallest woman in the world.
** At the time Creator/StephenColbert was recording his role as the President, his [[Series/TheColbertReport TV alter ego]] was running a presidential campaign of his own.
* HisNameReallyIsBarkeep: Meta example -- the man in charge of the 3D animation for this movie has the legally recognized name of Phil Captain 3D [=McNally=].
* TechnologyMarchesOn: Rule-bot 9000 was created during the Cold War.
* ThrowItIn: What you get when you hire [[Creator/StephenColbert an improv comedian]]. "[[CrowningMomentOfFunny Evidently they eat lead]]" was one of them.
* ViralMarketing:
** A rather believable (read: amusing) conspiracy nut website has teasers for the movie amid the alien coinage and mind-control candy.
** Nickelodeon created an ad which started out as a ''Series/TrueJacksonVP'' promo before abruptly going to static and then shifting to an announcement warning people of the arriving monsters.
* WhatCouldHaveBeen:
** Susan's "Zombie Cheerleader" costume from the HalloweenSpecial.
** A female Galaxhar who is basically the parallel version of Susan.
----