->''"Good-bye, good goody girl\\
I'm changing and how\\
So beat the drums 'cause here comes\\
Thoroughly Modern Millie now!"''
-->-- The title number

A 1967 musical comedy directed by George Roy Hill, ''Thoroughly Modern Millie'' later became a stage musical in 2002. Notably, the film version, which starred Julie Andrews as the titular Millie, was the source of composer [[ElmerBernstein Elmer Bernstein's]] only AcademyAward.

A "thoroughly modern girl" from Kansas, Millie Dillmount aspires to be the stenographer, and then the wife, of a wealthy man. After remaking her image, she meets Miss Dorothy Brown at the Priscilla Hotel, which is headed by a Mrs. Meers. She takes a liking to salesman Jimmy, but true to her ambition, she sets her sights on rich Trevor Graydon. Things get complicated for all when it's revealed that the hotel is a front for a white slavery ring, and that Miss Dorothy is their latest target.

The film thrives on MetaHumor, most notably the "break" halfway through in which literally nothing happens for a few minutes. It's an odd combination of 1920's comedy and 1960's sensibilities, swerving between parody and straight-up comedy.

!!This Work Contains Examples Of:
* ACupAngst: Inverted, with the fashion of a small chest being a bother to the slightly buxom Millie.
* AllMusicalsAreAdaptations: The film averts this trope.
* AltoVillainess: Mrs. Meers, in the stage show.
* AsideGlance: Millie does this a lot, and addresses the audience via silent movie dialog cards.
* BetaCouple: [[spoiler: Dorothy and Trevor]]. Subverted in the stage version where it looks like they'll hook up but [[spoiler: Dorothy hooks up with one of ThoseTwoGuys instead]]
* BookEnds: The musical ends with a hopeful-looking girl who walks onto center stage carrying a suitcase, much like Millie did at the start.
* TheCasanova: Jimmy in the stage show.
* DisguisedInDrag: Jimmy does this in the movie.
* DrowningMySorrows: Trevor does this after he is "stood up". By slipping it in his [[FrothyMugsOfWater coffee.]]
* TheFlapper
* GoldDigger: The main premise of the story.
* IAmSong: In addition to the title number, the ScreenToStageAdaptation adds "Not for the Life of Me".
* IncestIsRelative: Subverted. Millie seems to think that [[spoiler: Jimmy is cheating on her with Miss Dorothy. She's wrong, of course,]] but it's [[FridgeLogic made rather disturbing after]] TheReveal shows them to be siblings.
* InnocentInnuendo
-->'''Trevor:''' Bolt the door, take off your things and lets have a test!\\
'''Millie:''' Excuse me?\\
'''Trevor:''' Take a letter!
* InsistentTerminology: '''Miss''' Dorothy. In the movie, it gets to the point where other people start correcting it for her.
* IWantSong: this is ZigZagged in the stage version, with the song "How the Other Half Lives." Millie wants to be rich, and Miss Dorothy [[SlummingIt wants to be poor]]. See also "Gimme Gimme," another stage version song.
* KnockoutGas: Played with when the antagonist is pumping a white sleeping gas into the room of someone she plans to kidnap and sell into slavery, the problem is that she is in the room with the gas. As the gas gets thicker in the room she starts to yawn, slows down, and finally just falls over onto the bed; the gas has dissipated by the time she is found, still asleep.
** She tries again later while wearing a gas mask, with more success this time.
* LampshadeHanging: Done a lot in the movies, in the form of silent movie dialogue cards. Usually about [[RunningGag how well rich people can wear beads.]]
* {{Leitmotif}}: The same few bars of music crop up each time Mrs. Meers tries something "evil" in the musical.
** In the movie, a heroic fanfare is heard every time Trevor Graydon is shown parked outside the Priscilla Hotel while Millie and Jimmy are investigating Miss Dorothy's disappearance ... [[spoiler:despite the fact that he's been shot with a tranquilizer dart and is completely unconscious.]]
* LostAesop: In the end, Millie falls for the seemingly-broke Jimmy, agreeing that marriage out of love is more important than [[GoldDigger seeking a wealthy suitor for money.]] [[spoiler: TheReveal then crushes this moral by revealing that Jimmy is related to Dorothy and Muzzy, and is extremely wealthy himself.]]
** The moral being lost actually precedes the finale when Muzzy tells her story of the "green glass" her lover gave her, and how she accepted him and the glass out of love...and then reveals that they were actually emeralds, and her lover was ''also'' secretly wealthy.
*** The Aesop is at least partially retrieved by Muzzy's summing-up statement: "Even though I really do prefer emeralds, we could have made it on green glass."
* MotorMouth:
-->'''Ruth:''' ''[Rapid fire]'' Well, hello! You're new. You an actress? I'm an actress, but we couldn't be more different, so well never be up for the same part, which is a good thing, don'cha think? Ruth Devereaux-my stage name, anyway.
* NotEvenBotheringWithTheAccent: JulieAndrews plays Millie, who is from Kansas. Andrews herself uses her normal British speaking voice throughout the film.
* NotWithThemForTheMoney: After Millie has CharacterDevelopment.
* ObfuscatingStupidity: In the stage version, it turns out that [[spoiler:Bun Foo can speak English a ''lot'' better than he lets on. So when Mrs. Meers mocks his apparent inability to understand her and gloats about how she'll never save his mother from Hong Kong, he's more than happy later to testify to the crimes she committed.]]
* OohMeAccentsSlipping: [[InUniverse Done intentionally]]. Mrs. Meers does this when she gets frustrated.
* OpiumDen: A front for the white slavery ring.
* PairTheSpares: Parodied in the stage show, when [[spoiler:Trevor is seemingly the only one left without a love interest...and laments the loss of Millie, who was a fantastic secretary. Bun Foo reveals that he's a great typist, and the two go off together.]]
* PatterSong: The Speed test.
* PercussiveMaintenance: The elevator works only when you tap dance on it; in fact, the first time, it [[MickeyMousing Mickey Moused]] right into the title number.
* PluckyGirl: Millie, especially in the stage version. In case you couldn't tell from the opening number, she drives it home in the "Not for the Life of Me" tag by turning the DarkReprise into TriumphantReprise.
* ReallyGetsAround: Muzzy and her international stable of handsome "teachers."
* RelativeError: A major plot point.
* RichBitch: Judith Tremaine.
* TheRoaringTwenties: With the lyrics in the title song giving the year as 1922.
* SecretlyWealthy: [[spoiler:It's the TwistEnding.]]
* SignificantAnagram: "Zazu Rosy Schmevmen" in the musical.
* SlapSlapKiss
* SleepingWithTheBoss: This is the standard way to land a husband it seems(give or take actual sex): you meet a successful man by becoming his secretary, then he falls in love with you and you get married.
* SlummingIt: Miss Dorothy
* SmokingIsGlamorous: In the film, Millie sees some Chinese prostitutes doing this, and fails to mimic them properly. This leads to her accidentally [[SpannerInTheWorks blowing up the Chinese Opium Den]] and saving the day.
* {{Socialite}}: Muzzy van Hossmere.
* SouthernBelle: Miss Dorothy, depending on how she is played.
* TheStinger: At the end of the stage show, Bun Foo and Ching Ho's mother returns to them.
* ThoseTwoGuys: Bun Foo and Ching Ho. In a subversion Ching Ho ends up affecting the plot pretty heavily on his own.
* TomboyAndGirlyGirl: Millie and Dorothy.
* TranquillizerDart: The darts work instantly, though the earlier KnockoutGas was not played as straight.
* UnderdressedForTheOccasion: Millie in her plaid day dress at Muzzy's evening party.
* WardrobeWound: Judith Tremaine, when Millie gets soy sauce on her dress at Muzzy's party.
* WealthyEverAfter
* WeddingsForEveryone: [[spoiler: Dorothy and Trevor, along with Jimmy and Millie.]]
* WorkOffTheDebt: Jimmy purposefully neglects to pay for dinner to wash dishes with Millie. This is rather moot when it's revealed that [[spoiler:Jimmy is absurdly rich]].
* YellowPeril