* BreakthroughHit: For Creator/SamMendes as a film director.
* CompletelyDifferentTitle:
** Croatia: ''The Vortex of Life''
** Estonia: ''Elusive Beauty''
** Taiwan: ''American Heart Rose''
* {{Corpsing}}:
** Lester and Ricky laughing when Carolyn finds them smoking weed was Kevin Spacey and Wes Bentley actually cracking up. The director just left it in.
** The scene where Lester rattles off a list of euphemisms for masturbating had to be re-shot several times, because Kevin Spacey kept shouting out different euphemisms and Annette Bening was collapsing into hysterical giggles. Even in the take they used in the film, you can tell she's just barely holding her laughter back behind a feigned look of shock and disgust.
* CreatorBacklash: Downplayed. While Creator/SamMendes hasn't completely disowned the film, he has stated in a 2008 interview that he felt it got too much praise at the time of release and [[CondemnedByHistory hasn't stood the test of time]].
* DawsonCasting: Downplayed with Creator/MenaSuvari, who was 20 at the time playing the teenaged Angela (this was probably necessary -- depicting an adult character lusting over a teenager who was ''actually'' played by a teenager likely would've turned a lot of people off to the movie. Not to mention potentially made the actress involved uncomfortable), and with Creator/WesBentley, who was also 20. Averted by Creator/ThoraBirch, who really was 16, meaning that for her brief topless scene her parents and child labor representatives were on the set for the shooting.
* DoingItForTheArt: Creator/KevinSpacey, Creator/AnnetteBening and Conrad L. Hall worked for significantly less than their usual rates.
* DyeingForYourArt: Creator/KevinSpacey actually did bulk up that much. He had to change his posture to accommodate for several scenes being shot out of order.
* EnforcedMethodActing: Carolyn is having a breakdown rant at the dinner table that Lester is supposed to stop by dropping a plate of asparagus on the floor. After a few unsuccessful takes, Creator/KevinSpacey decided "screw this" and unexpectedly threw it at the wall, violently shattering a real glass plate. Creator/AnnetteBening and Creator/ThoraBirch reacted with genuine shock (although you don't see the expressions on their faces in the shot).
* FollowTheLeader: Is said to have been the movie that inspired ''Series/DesperateHousewives''. It inspired a lot of other "dark heart of suburbia" movies too.
* InspirationForTheWork: According to his Oscar speech, screenwriter Alan Ball was sitting at the World Trade Center plaza when he saw a paper bag floating in the wind and was inspired by it to write the film, which was originally conceived as a stage play.
* MidDevelopmentGenreShift: The film was originally written as a stage play.
* MissingEpisode: A huge subplot was filmed and eventually cut from the final film. [[spoiler:Jane and Ricky would be on trial and convicted for Lester's murder - with the video of Ricky jokingly asking if she wants him killed incriminating them. Barbara Fitts would find her husband's bloody t-shirt and hide it, implying he'll get away with it. Additionally it would show that Carolyn and Buddy King would get married, while Angela would be seen on a ''Series/{{Baywatch}}'' style TV show]]. Mendes dropped it because he felt it ruined the tone of the story. More details [[https://lostmediawiki.com/American_Beauty_(lost_alternate_ending_of_drama_film;_existence_unconfirmed;_1999) here]].
* StarMakingRole: For Creator/WesBentley and Creator/ThoraBirch.
* ThrowItIn:
** Creator/KevinSpacey was only supposed to drop the plate in the dinner scene, but he wasn't getting the right reaction, so after a few takes, he threw the plate against the wall as hard as he could. The actresses' startled reactions were real.
** The scene where Lester attacks Carolyn's feet with a remote control car was also unscripted, and Creator/AnnetteBening's surprise and annoyance are a real reaction.
** He also improvised everything Lester does in the car while stoned, including singing along to "American Woman".
** In the scene when Carolyn told Lester that she was ready to go while he was smoking pot with Ricky outside the restaurant, Spacey could not control his laughing and Creator/WesBentley can be seen laughing too, as this was not scripted.
** The "Look Closer" {{Tagline}} was inspired by something the set dresser had put on Lester's cubicle at work. Creator/SamMendes only noticed it in the editing and thought it would make a good marketing slogan.
* WhatCouldHaveBeen:
** The opening shot was originally going to have Lester flying through the air, above all the houses and down into his bed.
** Barbara was supposed to have more dialogue, and conversation scenes with her husband. Creator/SamMendes however chose to cut them, feeling her character was conveyed far better through her silence.
** A pivotal sequence in the original script would have Jane and Ricky seeing a car crash on the freeway, which was changed into Ricky's line about filming a dead homeless woman to cut costs. The part where Jane decides to walk home with Ricky rather than ride with Angela was then added in to make up for it.
** In the original script, Lester enjoyed {{country music}}, much to the annoyance of Jane and Carolyn.
** An earlier draft would have given Col. Fitts a backstory where [[spoiler:during his time in Vietnam, he falls in love with a fellow male soldier who ends up dying in front of him, leading Frank to believe that he was being punished for the "sin" of being gay,]] and thus creating his intensely fearful homophobia.
** Creator/TerryGilliam, Creator/DavidLynch and Creator/MikeNichols declined the chance to direct the film.
** Creator/ChevyChase,[[note]]He turned it down due to his policy of only doing family films[[/note]] Creator/KevinCostner, Creator/JeffDaniels, Creator/TomHanks, Creator/WoodyHarrelson, Creator/JohnTravolta and Creator/BruceWillis were considered for Lester Burnham.
** Creator/KimBasinger, Creator/HelenHunt and Creator/HollyHunter were considered for Carolyn Burhnham.
** Creator/JakeGyllenhaal and Creator/SethGreen auditioned for Ricky Fitts.
** Creator/KirstenDunst,[[note]]She wasn't interested in playing the object of Lester Burnham's lust. Her explanation for the rejection was simple: "I didn't want to be kissing Creator/KevinSpacey. Come on! Lying there naked with rose petals!?"[[/note]] Creator/SarahMichelleGellar,[[note]]She was busy with ''Series/BuffyTheVampireSlayer''[[/note]] Creator/AlysonHannigan, Creator/KatieHolmes and Creator/BrittanyMurphy were all offered the role of Angela, but turned it down. Creator/TiffaniThiessen tested for the same role but failed the audition. Creator/JessicaBiel was cast, but dropped out due to her commitment to ''Series/SeventhHeaven''.
* WriteWhatYouKnow: Alan Ball based Lester's story on aspects of his own life. Lester's re-examination of his life parallels feelings Ball had in his mid-30s. Like Lester, he put aside his passions to work in jobs he hated for people he did not respect. Scenes in Ricky's household reflect Ball's own childhood experiences. Ball suspected his father was homosexual and used the idea to create Col. Fitts, a man who "gave up his chance to be himself". Ball said the script's mix of comedy and drama was not intentional, but that it came unconsciously from his own outlook on life. He said the juxtaposition produced a starker contrast, giving each trait more impact than if they appeared alone.
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