* BileFascination: Those who joined the ''Avatar'' fandom after the release of the movie can't help but be curious to know why it was panned to kingdom come.
* BrokenBase:
** The debate over the movie casting was so intense that entire forums were divided over it, with those supporting the casting and those against it being banned for their opinions. Protesters considered those who supported the casting as blind and shrugging off a big issue, while those that eagerly anticipated the movie saw the protesters as [[NoTrueScotsman not 'true' fans]].
** Firebending only being able to manipulate pre-existing flames ([[spoiler:except in special circumstances]]). People tend to either be upset that [[TheyChangedItNowItSucks it's not the same as in the show]], or feel that it now fits with the other three bending types in that it doesn't create the bendable element.
* EnsembleDarkhorse: Francis Guinan as Pakku has been noted by several reviewers to be the one actor to escape the film with his dignity intact, putting real effort and emotion into his scant screen time in stark contrast to everyone else. Seychelle Gabriel's performance as Yue also was moderately well received by fans, and Bryan and Mike would later cast her in ''WesternAnimation/TheLegendOfKorra''.
* FightSceneFailure: Viewers have criticized all of the fight scenes.
** When the [[http://www.youtube.com/watch?v=_RpgbZcHk_A Earthbender prisoners are staging a revolt]], we see six Earthbenders moving in perfect precision and choreography, stomping the earth and releasing a [[ScreamingWarrior mighty battle cry]]... and a tiny rock barely bigger than a football floats by very, ''very'' slowly. A ''seventh'' Earthbender then launches it at a guard. A fan theory suggested that the dancing Earthbenders were actually responsible for making the earth walls previously used to block the fire blasts, but the scene alludes to the cartoon, in which Haru's father ''was'' the one who made the earth wall. It probably would have been more effective if all seven benders instead each picked up a moderately sized rock and just threw them.
** The above fight scene, along with a few others, were all shot with a single camera, with no jump cuts. This leads to the problem of showing the audience a large number of [[MookChivalry mooks standing in the background, not doing anything while their friends are getting knocked senseless.]]
%% * GermansLoveDavidHasselhoff: Creator/MNightShyamalan claims that while American audiences received the film negatively, the Japanese audience view him as a genius.
* HamAndCheese: Aasif Mandvi plays Zhao pretty similarly to how he always plays himself on ''Series/TheDailyShow'', only, well, evil.
* HilariousInHindsight:
** "The Ember Island Players" episode, which came out at the time when this movie was in production. Needless to say, a lot of jokes were to be had using footage from that episode to showcase how bad the film was. The last line in the episode especially, which has the heroes say the show they just saw was awful but the effects were nice.
** Seychelle Gabriel (movie Yue) voicing Asami in ''WesternAnimation/TheLegendOfKorra'', a character first intended as a simple RomanticFalseLead but was changed to become much more prominent when she became popular with the fans. [[spoiler:The hilarity doesn't reach its peak until the ''end'' of the show, though, where Asami ended up becoming the titular Korra's final ''love interest''.]]
* InternetBackdraft: Online criticism of the film reached apoplectic levels. Luckily, capital letters and boldface are unlimited resources.
* JerkassWoobie: Zuko, when he's not [[LargeHam yelling or being his general angry self]].
* MemeticMutation: Before the movie had even come out, early test screening reviews mentioned a scene that has turned the phrase "punching the fish" [[http://fc05.deviantart.net/fs71/f/2010/063/7/3/PUNCH_A_FISH_IN_THE_FACE_by_Booter_Freak.png into a meme]][[note]]He actually stabs it with a knife.[[/note]]. Other gems include the pebble dance (the most notorious example of the {{Flynning}} mentioned above[[note]]Six earthbenders. Four seconds of ''kata''. One rock, slightly larger than a human head.[[/note]]), Kat-tackle (Katara pushing over a random guard and then just standing there), Zhao constantly mentioning the secret library, Ozai's glowing ass (from a screenshot in which the source of light appears to be Ozai's rear end), Yue's line about believing in beliefs, and her penis hair (how it looks like when viewed from the [[http://i747.photobucket.com/albums/xx111/aangthony/wtf-tla/101.jpg back]].)
%% ** [[http://www.youtube.com/watch?v=e5J7inpYSoE AANG! JUST ONCE!]]
%% ** X, there is Y under your feet! Why don't you fight?
%% ** [[AC:X scene was cut from the movie because it was too "distracting".]]
%% ** [[FelonyMisdemeanor It really hurt!]]
* MisBlamed: Some sources have redirected responsibility for many of the film's flaws from Shyamalan to ExecutiveMeddling.
* {{Narm}}: [[Narm/TheLastAirbender Has its own page.]]
* NeverLiveItDown: Played straight with Creator/MNightShyamalan, who has yet to distance himself from the spectacular failure of this film on top of his [[Film/TheVillage previous]] [[Film/LadyInTheWater three]] [[Film/TheHappening outings]]. Likewise, Creator/{{Nickelodeon}} and Creator/{{Paramount}} have not been allowed to forget their part in this film's creation.
* ShipTease: The ending of the Oasis fight was significantly more... Zutara-ish.
* SnarkBait: Oh, so very much. It's in reviews, it's in forums, and it's in ''Wiki/TVTropes'', and it's all because the movie is so awful.
* SoBadItsGood: For all the snark the movie earns, it's good for riffing on at least.
* SpecialEffectsFailure:
** The CGI animals.
** At the beginning, Katara splashes an off-screen Sokka with water, but he is completely dry when he appears.
** In what is purportedly an arctic area, you can't see anyone's breath.
** At times, the waterbending is not even animated.
** The firebending is pretty much nothing but poorly composed live-action fire elements with CG that even the film version of ''Film/{{Spawn}}'' would reject.
** The last-minute 3D conversion was universally panned, and put a severe setback for the idea after the '''[[SimilarlyNamedWorks other]]''' ''Film/{{Avatar}}'' helped forward the technology; Creator/RogerEbert outright said ''The Last Airbender'' put the nail in "low-rent" 3D in his very negative[[note]]He gave it half a star out of four, the lowest score he would give a film he didn't consider personally morally offensive.[[/note]] review of this film.
* TheyChangedItNowItSucks: Long before the movie was anything more than a casting list and a few trailers, fans were complaining about changes to the source material. One of the biggest examples from the movie once it finally came out was the pronunciation changes, which Shyamalan deliberately included to make the character names sound closer to their "correct" Asian pronunciations (even though most of the names were made up) than the Americanized pronunciations from the cartoon. Fans were not pleased.
* TheScrappy: Live!Katara has far fewer fans than her cartoon counterpart, mainly for hardly being like Cartoon!Katara and her actress having a severe case of DullSurprise. It also doesn't help that this script removed many of her strong CharacterDevelopment moments and gave most of the rest to Aang.
* TheyJustDidntCare: Many of the show's fans conclude that it was M. Night Shyamalan who didn't care.
* TookTheBadFilmSeriously: Shaun Toub and Dev Patel, though at least the latter was somewhat close to his character's original portrayal.
* UncannyValley: Appa's face in the movie, from what's been seen in the trailers and [[MerchandiseDriven tie-in toys]]. Samples [[http://screenrant.com/the-last-airbender-toys-kofi-44634/ here]].
* UnfortunateCharacterDesign: Yue's hair style didn't fare well in the transition from cartoon to live action, as from the back many claim it resembles a penis.
* UnfortunateImplications:
** ''Website/TheAgonyBooth'' [[http://www.agonybooth.com/movies/The_Last_Airbender_2010.aspx objects]] to what its recapper considers a sexist tone in the film, pointing out that a number of important moments for female characters (Katara's speech to the imprisoned earthbenders, Yue realizing she can [[spoiler:sacrifice herself to restore waterbending]]) are given to male characters instead.
** [[http://io9.com/5111680/avatar-casting-makes-fans-see-white Many fans of the show]] saw the decision to cast white performers in the leads as a RaceLift to exclude Asian actors from the roles. The casting call as for "Caucasian or any other ethnicity" suggested a preference for white actors, and it also [[InterchangeableAsianCultures suggested that people of Korean descent wear a kimono]].
* WTHCastingAgency:
** Aasif Mandvi as Zhao. Mandvi is a primarily comedic actor best known for his work on ''Series/TheDailyShow''. Shockingly enough though, he end up being one of the most faithful characters to the source material.
** Many fans of the original cartoon would have preferred Asian actors to play Katara and Sokka because although the characters have ambiguous racial features, their culture is based on Inuits. Caucasian actors Nicola Peltz and Jackson Rathbone were cast instead, but all the Waterbender extras ''were'' Asian or Inuit actors, so the main characters don't seem to belong to their own tribe.