* HeyItsThatVoice
** [[Film/LegallyBlonde Elle Woods]] is Ginormica and her fiancÚ is [[Film/{{Anchorman}} Brian Fantana]].
** [[Series/{{House}} Dr. House]] is Dr. Cockroach.
** [[Film/KnockedUp Seth Rogen]] is B.O.B.
** Creator/StephenColbert is the President.
** [[Series/TwentyFour Jack Bauer]] is General W.R. Monger.
** [[Series/TheOfficeUS Jim]] is a jock while [[Series/TheOfficeUS Dwight]] is the movie's BigBad. The jock's girlfriend is Literature/BridgetJones.
*** In the video game, Creator/JamesArnoldTaylor ([[Franchise/RatchetAndClank Ratchet]], [[TheObiWan Obi-Wan]] [''WesternAnimation/StarWarsTheCloneWars''], WesternAnimation/JohnnyTest...) fills in for Jim.
** [[Series/ArrestedDevelopment Gob]] plays Link and [[Series/ArrestedDevelopment his father George]] is Susan's father.
*** Will Arnett's then-wife Amy Poehler voices the BigBad's computer.
* HisNameReallyIsBarkeep: Meta example -- the man in charge of the 3D animation for this movie has the legally recognized name of Phil Captain 3D [=McNally=].
* InvisibleAdvertising: The TV show suffered this. When it finally started airing, Nick didn't really bother to promote it much. The fact it only played on Sundays likewise hurt its ratings.
* TheOtherDarrin: Pretty much the entire cast was replaced in the TV series on {{Nickelodeon}}, with how close they sound varying greatly.
* 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 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.
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