''Mamma Mia!'' is a hit stage musical based around the music of Music/{{ABBA}}. It was made into a 2008 film starring Creator/MerylStreep, Creator/PierceBrosnan, Creator/AmandaSeyfried, Creator/ColinFirth, Creator/StellanSkarsgard, Christine Baranski, Creator/JulieWalters and Creator/DominicCooper.

The plot is simple enough: 20-year-old Sophie (Seyfried) is the daughter of single mom and former rock star Donna (Streep). Sophie is getting married to Skye (Cooper) and wants her father at her wedding; unfortunately, she doesn't know who it is as Donna never told her. To be fair, Donna herself doesn't know, having slept with [[ReallyGetsAround three guys]] right around the time she became pregnant: Sam (Brosnan), Harry (Firth) and Bill (Skarsgård). Sophie invites all three possible dads to her wedding to try and find her natural father.

Throw in a Greek island, the other two members of Donna's former girl group (Baranski and Walters) and a dozen ABBA songs, and HilarityEnsues.

!!Provides examples of:
* AdaptationNameChange: Bill Austin becomes Bill ''Anderson'' in the film, since he's played by Swedish actor Creator/StellanSkarsgard.
* AnachronismStew: Most glaringly, although the film is apparently set in the early 2000s, 20-year-old Sophie is explicitly said to have been conceived "at the end of flower power", i.e. 1969-1972. And even this is contradicted - early Net adoption was in 1993-1995 in the UK. This may lock closer to Sophie's age and Sky's advertising venture.
* ArtisticLicenseTraditionalChristianity: Judging from how he's vested, if the priest isn't Catholic, then he's Orthodox. Either way, you'd expect he would refuse to marry [[spoiler:Sam to Donna]], as he had just revealed that he had gotten divorced.
* AudienceParticipation: On stage, audience members are encouraged to sing, clap, and dance along. About a month and a half after the film's U.S. release, Universal shipped out a "sing-along" version with the lyrics appearing on screen.
* BiTheWay: [[spoiler: Harry.]]
* BrickJoke / CallBack: At the beginning, Rosie describes herself as a lone wolf. Bill describes himself as the same later on, which is the cue she needs to pursue him.
* ButNotTooGay: [[spoiler: Harry]] and his boyfriend gets maybe half a minute of screentime, on a generous count.
* TheCameo: Benny Andersson appears as a piano player during "Dancing Queen." Bjorn Ulvaeus appears as a member of the [[Myth/GreekMythology Greek Pantheon]] during "Waterloo."
* CarpetOfVirility: Sam has one. [[MrFanservice We get to see it]], thanks to Meryl Streep -- see ThrowItIn. (In case you were wondering, yeah, Pierce Brosnan's still got it.)
* ChickFlick: The fifth highest-grossing film of 2008, and targeted at female audiences to boot!
* CleaningUpRomanticLooseEnds
* CoolOldGuy: Bill
* {{Deuteragonist}}: The movie is just as much about Donna as it is about Sophie. After all, what director on Earth is going to cast Creator/MerylStreep in a supporting role?
* DoesNotLikeShoes: In many stage productions, Sophie goes barefoot in the opening scene and many others. In the film, she is a barefoot bride (seen in posters and the end of the scene where Sky [[BridalCarry picks her up]].
* DramaticEllipsis: Sophie wonders why the diary contains so many of them.
* ExtremelyShortTimespan: The whole show takes place over 2 days, with the intermission (if you're watching the stage version) taking place overnight.
* GeneHunting
* GenkiGirl: Sophie. The older females are quite energetic as well, despite their age.
* GreekChorus: ''Literally!''
* HollywoodNight: "I Have A Dream" and several other "night" scenes
* HonoraryUncle: Rosie and Tanya, to Sophie.
* JukeboxMusical
* LargeHam: Virtually the entire adult cast, [[Creator/MerylStreep at least one of whom]] doesn't get to do it very often.
* LikesOlderWomen: Pepper.
* NoIndoorVoice: In the movie, all the women qualify.
* OnceAnEpisode: There's a big gap in the song "I Do" in which all eyes go to the character being exhorted to make the vows. At ''least'' one audience member will keep singing.
* OneDialogueTwoConversations: After the bachelorette party, both Bill and Harry are trying to tell the other that they found out that they're Sophie's father (at least that's what they think). However, Bill thinks Harry is [[spoiler: trying to Come Out to him]], while Harry thinks Bill is trying to [[spoiler: admit to hooking up Rosie]].
* PowerTrio: Actually four of them -- Donna and the Dynamos; Sophie, Lisa and Ali; the three possible dads; and Sky, Pepper, and Eddie, albeit the last one is a subversion, since Eddie (or Salt, depending on the version you're watching) is practically cut.
* RousseauWasRight
* RuleOfFunny: One review described the film as the closest thing we'll ever come to seeing A-list celebrities doing drunken karaoke.
* SceneryPorn: The movie is ''full'' of it.
* ShoutOut: "Bright, Harry Bright" (as Film/JamesBond is standing next to him, no less!)
* SlidingScaleOfIdealismVersusCynicism: ''Way'' toward the Idealism end.
* StealthPun: Oh right, ha ha, those guys singing in the background are a GreekChorus. Well how's that for brekekekeke-ing your ko-ax.
* TellMeAboutMyFather
* TitleDrop: ''Mamma Mia, here I go again...''
* ThoseTwoGirls: Sophie's best friends Ali and Lisa.
* TrueBlueFemininity: {{Invoked|Trope}} during the Dancing Queen sequence, where all the women are donning blue pieces of clothing.
* TwoScenesOneDialogue: After the bachelorette party, Donna/Sophie is fretting to Rosie & Tanya/Ali & Lisa over the three-dads-present issue. Rosie & Tanya/Ali & Lisa decide to take the men out fishing to keep them distracted.
* WackyMarriageProposal
* WhosYourDaddy: [[TheUnreveal Sophie eventually decides she doesn't care]] (WordOfGod is that the father is [[spoiler: Bill]]).
* WhyWasteAWedding: Word for word when [[spoiler:Sophie and Sky decide not to get married, thus Donna and Sam get married instead.]]
* WideEyedIdealist: Sophie