* AngstWhatAngst: Gillian is not particularly upset about being thrown 300 years into the future. True she said she had no one at home but still, such an upheaval should have warranted some shock.
* {{Anvilicious}} about its GreenAesop. It definitely ''is''; opinions vary on whether people have a problem with that.
* BaseBreaker: While it's one of the more popular installments, there are fans who see it as a glorified version of ''{{Tarzan}}'s New York Adventure''.
* BigLippedAlligatorMoment: The bizarre dream sequence that occurs during the first time-jump.
** That sequence was largely filmed with primitive CGI. Since this was TheEighties, the technology couldn't be used to render ''anything'' remotely realistic, so they simply nixed the realism part in order to pioneer a new filming technique.
* BlueAndOrangeMorality: The probe. It's willing to sacrifice an entire planet just to make contact with an alien species, and yet it (or its designers) see nothing wrong in this. Could be a case of badly-programmed AI or AI without empathy, but even so, it makes no sense to us.
** It's possible the probe would just keep repeating its message until it got an answer, that in effect it could not be turned off until it did. It's still poor planning, as what would happen if there never was an answer hadn't been considered by the programmers.
* {{Fanon}}: It's suggested by official sources, though not confirmed, that the Enterprise-A was not a brand new ship but was the ship ''Yorktown'' (mentioned early in the film as suffering from the probe's effects) and was rechristened to be the ''Enterprise''. In any case it is question of how quickly they were able to make a new USS ''Enterprise'' when the first was destroyed only about 3 months prior in story. This story did have the backing of WordOfGod, as the ''Yorktown'' was the original name of the starship in Gene Roddenberry's first pitch of ''Franchise/StarTrek''. Such a concept would be used in a [[Series/StarTrekDeepSpaceNine later series]], where the USS Sao Paulo is redubbed the USS Defiant.
** An alternate theory is that the ''Enterprise''-A is a new ship, originally ordered with a different registry, but then that wouldn't explain why Starfleet would be so keen to retire the ship [[Film/StarTrekVITheUndiscoveredCountry less than a decade later]]. The ''Yorktown'' theory would fit, as it was around at the time of [[Series/StarTrekTheOriginalSeries the original series]].
* HilariousInHindsight:
** Sulu's line "San Francisco, I was born there..." has gotten more hilarious since George Takei came out of the closet. Originally it was funny just because of the fact Takei ''was'' born in San Francisco, but the revelation adds even more humor to:
--->'''Sulu:''' I ''love'' this town!
*** It also set off a number of jokes about just ''how'' Sulu convinced the helicopter pilot to loan him the vehicle - to say nothing of the way he takes Chekov's hand helping him onto the Klingon ship after he gets rescued.
** Catherine Hicks, who plays Dr. Gillian Taylor, went on to play Mrs. Camden on the TV series ''SeventhHeaven''. Her on screen husband, Stephen Collins, played Commander Willard Decker in ''Film/StarTrekTheMotionPicture''.
** Alternatively, [[Film/StarTrek Kirk really is from outer space]].
** In 20th century San Francisco, Kirk tells his crew [[Film/StarTrek "You look like a cadet review"]].
** In the beginning of the film, the Klingon Ambassador says "There shall be no peace, as long as Kirk lives!" The plot of the [[Film/StarTrekVITheUndiscoveredCountry sixth movie]] is about a new Klingon-Federation peace treaty, and Kirk is instrumental in getting it ratified and preventing another war.
** Scotty, after overcoming his initial uncertainty over how to use a Mac Plus: "The keyboard? How quaint!" Back then, ironic as mice and [=GUIs=] were cutting edge. Now, "just using the keyboard" ''is'' quaint. With the increasing popularity of touchscreen-based devices, doubly so.
* InsaneTrollLogic: The Klingon ambassador's tortuous case for how Kirk was supposedly a terrorist trying to use Genesis as a weapon/secret base to destroy the Klingon Empire would appear to be this, depending on whether or not you consider it outright [[BlatantLies propaganda]] or at least extreme wishful thinking on the part of the Klingons in order to save face.
* MemeticMutation:
** "Nuclear Wessels"
** "Admiral! There be whales here!"
** "Yeah, well, a double dumbass on you!"
** "Hellllllllloooo, Computer."
* NightmareFuel: Though pretty lighthearted compared to previous entries this ''comedic'' entry does have some very creepy scenes, such as the Federation ships being de-powered by the Probe, and the strange montage that plays out in Kirk's head when they're going forward in time.
* OneSceneWonder: The punk on the bus that Spock gives a Vulcan neck pinch to. Quote the actor, who was also the Associate Producer of the film: "I could win the Nobel Peace Prize and my grave would still say 'Punk On Bus Star Trek IV'."
* StrawmanHasAPoint: The pompous Klingon ambassador demands justice in response to Kirk killing Kruge's crew in the last movie, which cues Sarek to explain just how villainous they really were. The Federation president assures everyone present that Kirk will face Federation justice, which the Klingon ambassador scoffs at. Out of all the things the crew did in the last movie, no one is going to bat an eye over what happened to Kruge's crew. However, the Klingon ambassador nonetheless winds up being right to scoff at "Federation justice." All charges of theft and sabotage of Starfleet property are dropped, and Kirk's violating the chain of command is "punished" by a demotion to Captain and the command of his own ship - the two things he wanted anyway.
* VisualEffectsOfAwesome: The whales. It got to the point where US fishing authorities were brought in and criticized the producers for being around them. All the while not realizing they were just small scale animatronic models.

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