* AlternativeCharacterInterpretation: Could the whole film just be a fake memory implanted in Wolverine's mind to hide his true memories? It would explain a number of {{Continuity Snarl}}s.
* CharacterRerailment: In the comics, Comicbook/{{Gambit}}'s characterization had been changed to a [[{{Angst}} self-loathing]] [[TheAtoner Atoner]] desperate to punish himself for his (morally blameless) role in the Morlock Massacre. This movie, however, reaches back to the character's roots and shows him as a competent, charming, handsome, and relatively low-angst [[TheGambler card-sharp]] who won a CoolPlane in a poker game.
* ContestedSequel: For many, it is a {{Narm}}-fest which flies in the face of the other movies' continuity (particularly rewriting a lot of back story from ''Film/X2XMenUnited'', the franchise's peak until ''Film/XMenDaysOfFuturePast''), ruins both Comicbook/{{Gambit}} and SelfDemonstrating/{{Deadpool}} among other characters, allows a lot of characters to make stupid decisions in the name of advancing the plot, and all for the sake of making another movie centered on Wolverine when the first three were essentially his show, anyway. There are also a number of fans who felt that the film was simply a poor rendering of Wolverine's origins that did not capture the true horror and brutality of what the Weapon X program did to him. For others, the continuity wasn't all that important, Sabretooth was finally given his due with some decent character development, the incorporation of some new mutants was interesting, and the whole thing is a fun action film.
* ContinuityLockout: The film could have used footnotes to explain the significance of its story elements. Since the Weapon X scene was so brief, it could have said "To learn more, please read ''Weapon X'' by Barry Windsor-Smith."
* DracoInLeatherPants: Liev Schreiber's Victor Creed has caught the eye of the fangirls.
* EnsembleDarkhorse:
** Wade Wilson, pre-experiment. Critics and fans pretty much unanimously praised Ryan Reynolds as Wade, and it was what gained Reynolds a shot in [[Film/{{Deadpool 2016}} the character's solo film]].
** Despite his short amount of screentime and differences with the character, Taylor Kitsch's portrayal of Gambit was well received. Kitsch himself requested on countless occasions to be cast again in any other ''X-Men'' film, but he wasn't brought back for the oncoming movies, which will feature Channing Tatum.
** Liev Schreiber's take on Sabretooth has also been received well, mainly due to [[AxCrazy having the personality down]] and being [[HeReallyCanAct genuinely terrifying]].
* FandomBerserkButton: Do ''not'' refer to post-transformed Wade Wilson as SelfDemonstrating/{{Deadpool}}, his official codename is '''Weapon XI'''.
* HilariousInHindsight:
** Real world instance: Fans had been clamoring for Gambit to appear in ''X-Men'' films since the first one. The public response from the directors and writers was, "If we include him, we want to make him integral to the story. We're not going to just throw him in there because he's popular." Come this film, Gambit is in, fulfilling a minor role which could be handled by any character. It really seems like the studio executives just thought, "Who's a popular character we haven't used yet?"
** Also, the video game ends with Wolverine in a future with Sentinels. This happens at the end of ''Film/TheWolverine'', and ''Film/XMenDaysOfFuturePast'' is about averting it.
** At one point, Wade Wilson said "Thank you, sir. You look really nice today. It's the green. It brings out the seriousness in your eyes." Ryan Reynold would later portrayed ''[[Film/GreenLantern Green]]'' [[Film/GreenLantern Lantern]], the role that he would happily mocked [[SelfDeprecation (along with this portrayal of Wade Wilson (well, post-transformation, anyway))]] in [[Film/{{Deadpool 2016}} his next appearance as Wade Wilson]].
* JustHereForGodzilla:
** Plenty of reviews claim that basically, the only reason to watch the film is because it has [[WolverinePublicity Wolverine]] kicking ass.
** Many viewers were looking forward to the movie just for having the first live-action version of Deadpool. They... changed their mind when the movie came out.
* MemeticMutation:
** [[Franchise/MortalKombat Barakapool]], referring to Deadpool's enormous [[BladeBelowTheShoulder retractable arm-mounted adamantium katanas]].
** "Revenge Painting", referring to an incident involving former Fox CEO Tom Rothman re-painting a set behind director Gavin Hood's back, is a term used to describe the copious amounts of ExecutiveMeddling that went into the film.
%%* {{Narm}}
* NeverLiveItDown: The movie's treatment of Deadpool by infamously throwing out nearly everything that made the character what he is. Though a [[Film/{{Deadpool 2016}} far more accurate solo film]] was later released, some people are still shooting daggers at Fox for treating him the way they did here in the first place. In fact, several of those daggers [[BitingTheHandHumor come from the Deadpool movie itself]] (particularly the advertising).
* NoProblemWithLicensedGames: While not a ''brilliant'' game, the video game of the movie is a fun, gory hack-and-slash with well-working gameplay mechanics, plenty of fanservice, and expanded plot points. In fact, the game seems to be more well-received than the movie it's based off of! (As the developers worked on the also-very-well-received ''VideoGame/XMenLegends'', ''VideoGame/MarvelUltimateAlliance'', the two most recent titles in the ''Star Wars VideoGame/DarkForcesSaga'' and ''Franchise/StarTrek: Elite Force'', this may not actually be surprising.) Ironically, the story of the game works rather well when it's ''not'' trying to follow the plot of the movie. Interestingly, it also ends on a cliffhanger/possible sequel hook that is completely unrelated to the film's plot. Ironically, though, it sets up ''Film/XMenDaysOfFuturePast'' fairly well except for the future ContinuitySnarl that is Trask.
* OneSceneWonder: [[spoiler:Creator/PatrickStewart’s cameo]] near the end elicited applause from some theater audiences.
* RelationshipWritingFumble: The film is mostly about a heterosexual relationship, but the relationship between Wolverine and Sabretooth is too strong to be unintentional. While both characters repeatedly talk about how they're 'brothers', the constant SomethingElseAlsoRises, playful flirting, eyeing each other, phallic symbolism, and grappling each other while yelling "Feels good, doesn't it?" kind of ruins the 'brothers' vibe. It's worth noting that the comic-book version of Wolverine's childhood featured a significant redhead named Rose as his first love interest. The first scenes in the movie are copied almost directly from the comic, except with a young Sabretooth in Rose's place.
* RetroactiveRecognition: Runs into issues with the above, of the "How the heck did Troye Sivan grow up to ''that''?" variety.
* SignatureScene:
** Wade Wilson defeating a room full of mooks with just his swords.
** Wolverine vs. Deadpool
* SpecialEffectFailure: The effect used to depict Emma Frost's [[TakenForGranite diamond form]] pops out for its low quality. Also, though Wolverine's bone claws are well done, his adamantium claws, particularly in the bathroom scene, inspired much derisive audience laughter. You'd think in a movie explicitly about a mutant with metallic claws, that would get more CGI attention than anything, especially when incarnations in previous films (by the same FX studio, even!) were pretty good quality.
* TheyWastedAPerfectlyGoodCharacter:
** Wade Wilson[=/=]Deadpool. After getting the chance to display a weary snarky persona, he's taken out of the film until the climax, where we see that Stryker has basically turned him into an HumanoidAbomination. With his mouth sown shut, essentially robbing him of the sole trait he had in the movie.
** Comic fans had been calling for Gambit to show up in the movies since the first X-Men film. When he finally does here he's little more than a built-up throwaway gag.
* TookTheBadFilmSeriously: Just about everyone did this. Creator/RyanReynolds and will.i.am in particular stand out, making the most of their roles as Wade Wilson and John Wraith respectively.
* UncannyValley: The film features a cameo of [[spoiler:Professor Xavier]], which uses CGI to de-age him. The problem is, it's less-than-spectacular CGI and it just succeeds in making him look ''really creepy''--kinda like Humpty Dumpty. The same effect was used in ''Film/XMenTheLastStand'' to de-age [[spoiler:both Xavier and Magneto]], but was much better-looking and a lot more convincing.
* WhatAnIdiot: Okay, Wraith. Try to take Sabertooth on. Never mind the fact you're trying to ''punch'' a man with an absurd HealingFactor to death. Sabertooth getting a OneHitKill was probably a mercy because every punch Wraith landed probably would be doing more damage to himself.
* WTHCastingAgency: [[DownplayedTrope Downplayed]] with Creator/LievSchreiber, who's about a foot shorter than Tyler Mane, as Victor Creed. He's excellent in the role and pretty intimidating, but it's still a tad jarring. Meanwhile Danny Huston, the actor playing the young Stryker, is like a foot taller than Brian Cox, who played Stryker in X2. Even barring height, Cox and Huston look nothing alike.
%%* TheWoobie: [[spoiler:Teenaged Cyclops]].
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