* AdaptationDisplacement: The movies are far, far more widely known than the original book. The only reason most people even know that the book exists is that it's referenced in the film ''Film/MrsDoubtfire''.
* AudienceAlienatingEnding: The final chapter ends with Stuart continuing his journey into the world to find his FirstLove and optimistically hoping he's heading in the right direction. It should be noted that this only applies to the original book and not the movies, which gave a more concrete ending.
* SugarWiki/AwesomeMusic: [[https://youtu.be/aKzNg_ooP_c "You're Where I Belong"]]--written by Diane Warren and performed by Music/TrishaYearwood, which plays during the end credits of the first film.
** Music/AlanSilvestri returns [[Franchise/BackToTheFuture Michael J. Fox's side]] to supply warmth and thrills in the score. Like in "[[https://www.youtube.com/watch?v=mVi-7K_C0AQ The Boat Race]]"
** There's also the soundtrack to the second film.
*** "Another Small Adventure" as Stuart rebuilds his plane.
*** "I'm Alive", by Music/CelineDion, heard during the end credits.
*** Snowbell's rendition of "One" by Three Dog Night. Creator/NathanLane really gets to show off his vocal chops.
*** "Top of the World", played during Stuart and Margalo's FallingInLoveMontage.
*** "[[https://www.youtube.com/watch?v=GmtwUM3UXJY Falcon Finito]]" from Alan Silvestri's scoring in the climax.

* ContestedSequel: The second film has very memorable action sequences, but a part of the fanbase argues that the first film has more charm in its story.
* CriticalDissonance: The sequel film actually earned better reviews from critics than the first film (81% on Rotten Tomatoes and 66/100 on Metacritic, versus 66% and 61/100 for the first film), but ended up grossing much less than the first film at the box office. Audiences however were more polarized on both films with some finding them formulaic and expressed unhappiness with their diversion from the book. The third film however was disliked by critics and audiences alike.
* EvenBetterSequel: Definitely the consensus among critics at the time, as well as the belief some fans have now. Along with the second film [[TruerToTheText partially adapting the original story]], it also provides more action sequences, character development and, unlike the source material, Stuart actually gets to find Margalo.
* FridgeHorror: The presence of the Twin Towers in the background of the first film, and its conspicuous absence in the ''very first shot'' of the second, implies that in the film continuity of this universe, the Littles were around when 9/11 happened, and potentially witnessed the tragedy.
* HilariousInHindsight: In the beginning of the second film, Stuart mentions to George their upcoming soccer game and that they'll play like Brazilians. Said movie came out in late July 2002, after the final match of the 2002 FIFA World Cup where Brazil won the cup. Come 2014, Brazil would lose to Germany, the same nation they defeated in the 2002 final no less, with the final score being '''[[CurbStompBattle 1 to 7]]'''.
** In Stuart Little 3 Wayne Brady voices Reeko the skunk. [[WesternAnimation/SofiaTheFirst This isn't the last time he would voice a woodland creature.]]
* MemeticLoser: Whenever people discuss a potential Stuart vs. [[WesternAnimation/{{Ratatouille}} Remy]] fight, people generally say Stuart would lose as rats are generally superior to mice, ignoring the fact that Remy is a NonActionGuy who can at best control a human like a puppet, whereas Stuart has faced and won against alley cats, a falcon, a mountain lion and can drive cars, fly planes and repair said plane using spare parts made of trash. If anything, Stuart's resourcefulness would make him superior in a fight.
* MemeticMutation: The fact that the budget of the first movie was larger than the amount that the world’s richest countries used to fight the Amazon fires that happened in August 2019.
** A mouse being adopted over all the human children has also attracted some attention.
** Stuart fighting against Remy from ''WesternAnimation/{{Ratatouille}}''.
* MemeticPsychopath: Believe it or not, there's a Facebook group dedicated to demonizing Stuart called "I hate Stuart Little", blaming him of causing tragedies such as the Columbine High School massacre or the 9/11 attacks. Strangely enough, the same group also manages to portray Stuart as a MemeticMolester and a MemeticLoser at the same time.
* MoralEventHorizon:
** Anton crosses it when he attempts to sink George's boat despite knowing full-well that Stuart is on board.
--->'''Anton:''' Hope that mouse can swim.
** Falcon tries to murder Stuart the minute he sees him and then almost throws Snowbell off the roof.
** The gangster cats plot to "scratch" Stuart as soon as he figures out their plot.
** Smokey takes it even further when he tries to kill ''Snowbell''.
* NightmareFuel: As tame as these movies are, [[NightmareFuel/StuartLittle they do have their moments.]]
* {{Sequelitis}}: The vast consensus of the third film. While it [[RoleReprise brought back most of the actors from the films to voice their characters]], it was seen as pretty lackluster.
* {{Squick}}: In the books, Stuart was actually ''born'' to human parents, making him a severely deformed human being who resembles a mouse. This [[BodyHorror comes off as far more horrifying than the book had intended]], and it's small wonder why the film adaptation went with the HappilyAdopted approach instead.
* SuspiciouslySimilarSong: Remember [[https://youtu.be/SyLGKmJAvM8 the scene in the first movie with George and Stuart brushing their teeth?]] The background music sounds an awful lot like [[https://youtu.be/THJnvKgltZY?t=16 the chorus of "Wild As I Wanna Be" from]] ''WesternAnimation/OpenSeason'' (another Creator/ColumbiaPictures film, no less!).

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