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''Atonement'' is a 2001 book written by Ian [=McEwan=] about [[LoveHurts love]], [[WarIsHell war]], [[WriteWhatYouKnow writing]], [[MyGodWhatHaveIDone guilt]] and, well, [[TheAtoner atonement]].

It was adapted into a 2007 [[TheFilmOfTheBook film]] of the same name, directed by Creator/JoeWright and based on a screenplay by Christopher Hampton. It was produced by Working Title Films and filmed throughout the summer of 2006 in England and France, starring Creator/JamesMcAvoy and Creator/KeiraKnightley. Distributed worldwide by Universal Studios, with minor releases through other divisions, it was released in the United Kingdom and Ireland on September 7, 2007, and in North America on December 7, 2007.

''Atonement'' opened the 64th Venice International Film Festival, making Wright, at the age of thirty-five, the youngest director ever to open the event. The film also opened the 2007 Vancouver International Film Festival.

The film won an Oscar for the Best Original Score at the 80th Academy Awards, and was nominated for six others, including Best Picture, Best Adapted Screenplay and Best Supporting Actress (SaoirseRonan). At the 61st British Academy Film Awards, it won the Best Film of the Year and the Production Design award.

As for the plot, it's relatively simple. Briony Tallis, a young [[MostWritersAreWriters writer]] thinks her older sister Cecilia is being sexually harassed by her childhood friend Robbie Turner, also the son of her family's housekeeper. The two are in fact considering a consensual relationship.

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!!This book and film provide examples of:
* ActuallyPrettyFunny: Unlike Briony and Lola, when Cecilia reads the rude letter she guesses it was probably a joke and asks Robbie about it. While he's clearly mortified, Cecilia appears to have found it funny.
* AdaptationDyeJob: Briony (played by the blonde Saoirse Ronan) is described as having dark hair in the book. Given that brunette Keira Knightley was the first choice (for the adult version anyway) but chose to play Cecilia, this is presumably to distinguish the sisters.
* ArsonMurderAndJaywalking: When Briony is slashing nettles, she attributes to Lola the sins of {{Pride}}, [[VillainousGlutton Gluttony]], [[{{Greed}} Avarice]] and unco-operativeness.
* TheAtoner: Briony. [[spoiler: But only in her book does she make explicit atonement. It's left more ambiguous in real life, where such clean, neat endings are not always found.]]
* BitchAlert: Briony from the scene where she tries to get her cousins to rehearse her play.
* BlondeBrunetteRedhead: Only at the start. Briony is the blonde and her sister Cecilia is the brunette. When cousin Lola arrives, that gives them a redhead too.
* {{Bookends}}: The performance of ''The Trials of Arabella''.
* BoxedCrook: [[spoiler:Robbie joins the army rather than stay in prison.]]
* BreakTheHaughty: A rare self-inflicted example. After Briony realises what she's done, she turns down an offer to go to Cambridge and becomes a nurse during the War.
* BrotherSisterIncest: The actor playing Leon, Cecilia and Briony's brother, believed that Leon and Cecilia's relationship had elements of this; director Wright commented that he wasn't sure he agreed with him on that, and speculated it may have been because so many of Ian [=McEwan=]'s other novels have incest in them. Nonetheless there are a few moments in the film (and another in a deleted scene) that hint at this idea.
* ChekhovsGun: Robbie seen looking at a wound on his chest as he and his two men begin their march. [[spoiler: Foreshadowing the septicaemia that later kills him]].
* ChildrenAreInnocent: PlayedForDrama. Briony and Lola, being young and naïve, assume Robbie must be a sex maniac. They don't understand adult relationships at all.
* CountryMatters: The word is actually a ''plot point'' in both the book and the film.
* CrucifiedHeroShot: [[spoiler:Cecilia's body floating in the flooded underground.]]
* DecoyProtagonist: One would be forgiven to think that Cecelia and Robbie are the main characters of the film (especially from the promotional materials), but really it's Briony.
* DiedHappilyEverAfter: [[spoiler:Cecilia and Robbie: it's hinted at in the end of the movie, but never stated in the novel]]
* DiesWideOpen: [[spoiler:Nettle doesn't close Robbie's empty eyes.]]
* DistantFinale: A depressing one indeed, more explicit in the film, which features Briony being interviewed on TV. [[spoiler: Briony reveals that the whole second half of the story is a lie and that Robbie and Cecilia never got reunited. She's publishing her book on the events, rewriting history to give them a happy ending - before she succumbs to dementia.]]
* DownerEnding: [[spoiler:Briony makes it clear that the final meeting between her, Cecilia, and Robbie never actually happened. Both died in 1940, having met only once for a short time since Robbie being put in jail. Paul Marshall gets away with his rape of Lola. Briony herself will die childless while literally losing her mind (though this may be seen as a comeuppance) and doesn't even write her book revealing the truth until decades after it happens and after many of whom were involved in the incident are dead.]]
* TheEndingChangesEverything: In the book, Briony openly states that [[spoiler:there was no way she could end the story with the lovers dead, so she put in a happy ending]]. She furthermore tells the reader not to wonder what really happened. The movie makes it clear that [[spoiler:Robbie dies of septicemia and Cecilia is killed in a bombing.]])
* EurekaMoment: Years later when Briony realises [[spoiler: it was Paul Marshall she caught with Lola and not Robbie]].
* FalseRapeAccusation: What drives the plot.
* FixFic: [[spoiler:In a way, the whole book is Briony doing this in-universe.]]
* FlorenceNightingaleEffect: While working as a nurse during the war, Briony tends to a French soldier wounded in the head. He mistakes her for an English girl he met in his childhood, but [[LetThemDieHappy Briony plays along because she knows he's suffering]]. When he asks if she loves him, Briony says that she does (both the book and the movie makes it clear that Briony truly did, even if it was just for a few seconds). The soldier dies a minute later.
* GentlemenRankers: Robbie's upbringing qualifies him for an officer rank, but he is forced to be a private because of his criminal record.
* TheGhost: The Old Man (the Tallis patriarch) is frequently alluded to, but never seen.
* HairContrastDuo: Immature bratty Briony is blonde, contrasted with mature, open-minded Cecilia who is brunette.
* HairstyleInertia: Briony has the same bobbed hairstyle in childhood and adulthood.
* [[spoiler:TheHeroDies: Both Robbie and Cecilia themselves at the end.]]
* HeelRealization: [[spoiler:Briony's 'discovery' that Robbie was innocent.]]
* HopeSpot: For the audience. [[spoiler: Robbie living in London with Cecilia makes the audience believe that he made it, that he got evacuated, Briony atones herself and everything goes back to somekind of normality. Only in [[TheEndingChangesEverything the end]] we find out that all of this just happened in Briony's fantasy and both lovers died in 1940.]]
* IrrevocableMessage: The obscene letter Robbie accidentally sends to Cecilia.
* IShouldWriteABookAboutThis: The book is narrated by Briony, who considers telling the story to be her [[TitleDrop "atonement."]]
* [[ItsNotPornItsArt It's Not Porn It's Art]]: The rather lengthy [[WallBangHer sex scene]] in the book. Regarding the movie, Joe Wright states the love scene was inspired by a painting.
* JailBaitWait: Another interpretation of [[spoiler: the rape of Lola is that she and Marshall were having an affair and he married her as soon as she came of age]].
* KarmaHoudini:
** Paul Marshall who is guilty for [[spoiler: raping Lola and allowing Robbie to take the blame for it. Briony doesn't realise his guilt until years later when it's too late to do anything about it]].
** [[spoiler:It's implied in both the book and the movie that Lola knew exactly who was raping her, and saw Briony's FalseRapeAccusation as a way out of an encounter that she may or may not have consented to. Judging by Lola's reaction to Briony at her wedding, she seemed to know that she (Briony) knew the truth, which means that she was perfectly willing to let an innocent Robbie go to prison for Paul's crimes. In that case she gets absolutely zero comeuppance for this, instead living the rest of her days as a rich woman and is healthy and hale the last time book!Briony sees her.]]
* KnowNothingKnowItAll: Briony thinks she's WiseBeyondHerYears but she's still very naïve and ignorant of a lot of other things.
* LastNameBasis: When she's a nurse, Briony is reprimanded for letting patients call her by her first name. The ward sister only addresses her by her last name.
* LetThemDieHappy:
** [[spoiler:Robbie's last action is to light a match and take one last look at the postcard of the cottage by the beach where he and Cecilia were going to spend time.]]
** Briony tends to a dying soldier who thinks she's his fiancee. She plays along.
* LoveLetterLunacy: Robbie is frustrated trying to write a letter to Cecilia, and writes a vulgar, sexually charged one to work out this frustration. Afterwards, he writes a perfectly lovely one and gives it to his love's young sister to deliver. Guess what? He hands out the wrong one.
* MamaBear: Robbie's mother assaults the police car after her son is taken away. It doesn't amount to anything but points for effort.
* MiscarriageOfJustice: Robbie who gets sent to prison and later the army for a crime he didn't commit. The rude letter he wrote Cecilia and Briony's testimony just implicates him even further, as does the fact that he's the gardener's son - and all other suspects are upper class.
* MonochromeCasting: Mace is one of the only nonwhite characters in both the book and the movie. Given that the first half of the story mainly focuses on one high class English family, this is semi-justified.
* MotorMouth: Thomas Nettle, who rambles on while Robbie and Mace are walking to Dunkirk.
* NiceGuy: Nettle clearly likes and respects Robbie [[spoiler:and makes him as comfortable as possible when it becomes clear that Robbie won't make the night. He even takes his letters from Cecilia to return them when he makes it back.]]
* NotWhatItLooksLike:
** Briony spies Cecilia stripping off for Robbie and, combined with the rude letter she accidentally saw, concludes he must be a sex maniac. Cecilia was merely stripping off to get something out of the fountain and the letter was a joke.
** And when she walks in on the two of them having sex, she assumes Robbie must be ''attacking'' Cecilia.
* OhCrap: In the movie when Robbie hands the letter to Briony and she's had enough time to walk away, he realises he gave her the rude one by accident and shouts out "Briony!" - but to no avail.
* TheOner: The continuous shot on the Dunkirk beaches in the movie. It took three tries, and the cameraman fainted afterward. At one point you can see an actor trip and recover.
* ThePenance
* [[spoiler:TogetherInDeath: see DiedHappilyEverAfter]]
* PerspectiveFlip: Happens a couple of times, with Briony's and Cecilia's viewpoints being shown out of chronological order before intersecting.
* PoorCommunicationKills: A lot of the drama would probably have been sorted out if Robbie and Cecilia ''just told Briony they were in love''. Though they themselves didn't realize it until that same night, and Briony was still jealous of Robbie's feelings for Cecilia, the least they could have done is said something quickly after their encounter in the library instead of just awkwardly leaving.
* RapeAsDrama: [[spoiler:The assault on Lola.]]
* {{Retirony}}: A variation. [[spoiler:A wounded Robbie has just a day to wait until he's evacuated, at which point he can meet Cecilia. Is it any wonder if he makes it or not?]]
* RewatchBonus: Robbie's reaction to being told that the wounded will be left behind at Dunkirk. [[spoiler: He's not only badly wounded but dying at that point.]] Also a bizarre scene where Briony looks out a window at an old woman pushing an empty baby carriage. [[spoiler: The narrator is an old childless woman.]]
* SceneryPorn: It's a Joe Wright film; what do you expect? Even the shot of the somber Dunkirk feels more like SceneryGorn than true disarray.
* SexyBacklessOutfit: The emerald green dress Cecilia wears in the library scene.
* SexySoakedShirt: What kicks off the couple's infatuation. Cecilia dives for a vase into a fountain in her clothes.
* [[spoiler:ShootTheShaggyDog]]
* [[spoiler:SnicketWarningLabel: The interview at the end. The story before that was sad enough, but after the interview it's tragic.]]
* StarCrossedLovers: Not initially. Although Cecilia is higher class than Robbie, he's a friend of the family and it's implied they probably wouldn't have objected to them getting together. [[spoiler: But then Robbie is falsely convicted as a rapist and both of them later die in the war]].
* TradingBarsForStripes: Robbie is forced to join the army to avoid a prison sentence.
* {{Tsundere}}: Cecilia is Type A for Robbie who is actually Type B for her. Ironically, his rude letter helps them confirm their feelings for one another.
* UnreliableNarrator: Briony. [[spoiler: She is telling the story as a novelist several decades in the future, and (in the film) explains that a divergence from reality began at the Dunkirk evacuation.]]
* UptownGirl: Robbie and Cecilia's relationship at the start.
* WallBangHer: Cecilia and Robbie in the library.
* WarIsHell
* WellIntentionedExtremist: WordOfGod has it that Briony creates such a mess because she's so goodly and so certain of herself. Probably also qualifies as LawfulStupid.
* WhatBeautifulEyes: Creator/JamesMcAvoy got the part as Robbie Turner because the character is described as having eyes of optimism, and so does James, according to its director.
-->'''Creator/JoeWright''': He has his eye on a very bright horizon.
* WhatHappenedToTheMouse: It's not said what becomes of Briony's family after the war. Cecilia breaks off contact with them as soon as she comes of age. Likewise, we never hear of Robbie's mother after her son was convicted.
* WolverinePublicity: For the official [[http://www7a.biglobe.ne.jp/~nishiken/images/img318.jpg Japanese poster]] and the [[http://images2.static-bluray.com/movies/dvdcovers/96487_front.jpg Canadian DVD artwork,]][[note]]which incorrectly lists Knightley's name first[[/note]] Creator/KeiraKnightley is much more noticeable than her male co-star, even though Creator/JamesMcAvoy has the most screen time.
* {{Yandere}}: Briony for Robbie, at least her younger self. Jumping into a river to see if he would rescue her is one of the smaller things she did.
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