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* AwardSnub:
** The film won an [[UsefulNotes/AcademyAward Oscar]] for Best Screenplay, but probably would have won a few more, perhaps even Best Picture, if not for the misfortune of being released in the same year as ''Film/TheGodfatherPartII''. A lesser example than most, because the winner is also a great film. ''Chinatown'' did beat ''The Godfather Part II'' for Best Drama at the Golden Globes.
** [[spoiler:John Huston]] plays one of the most chilling villains of all time, and yet was not nominated for a supporting Oscar.
* AwesomeMusic: Music/JerryGoldsmith's beautifully evocative score, highlighted by the main title theme with its melancholy trumpet solo.
* CompleteMonster: [[spoiler:Noah Cross is a 1930's CorruptCorporateExecutive who doesn't even know his own net worth, outside of the fact that it's a great deal over ten million[[note]]almost 200 million in 2016[[/note]], only caring about accumulating as much money and power as possible. In the midst of a drought in Los Angeles, Cross dumps away thousands of gallons of water in order to build up support for his new reservoir project. Drying up the northwest San Fernando Valley by depriving it of water, Cross also poisons the wells and blows up the water tanks of the valley's landowners to coerce them into selling their land dirt cheap. Once the valley is his, Cross plans to use his new proposed reservoir to irrigate the land and increase its worth by millions. However, his business partner, and son-in-law, Hollis Mulwray, hinders his plan. Previously Cross had convinced Mulwray to build a dam in an area known to be geologically unstable. The result was that the dam burst and 500 people died. Even though Cross knows that the new reservoir would suffer from the exact same geologic instability as the previous one, he still demands Mulwray build it. After Mulwray discovers Cross's crimes and conspiracy, Cross kills him by drowning him in a tide pool. However, the most disgusting crime Cross committed was what he did to his daughter Evelyn. When she was just 15 years old, [[ParentalIncest Cross raped her]], traumatizing her for life and fathering another daughter with her. Cross's secondary goal in the movie is to take possession of his "grandchild" with the intention of subjecting her to the same abuse he subjected Evelyn to. Despite all of this, Cross says he doesn't blame himself for his actions because he believes, under the right circumstances, men are capable of anything, ignorant of the fact that this is only true for [[TheSociopath men like him]].]]
* FunnyAneurysmMoment: Back in the day, Creator/JohnHuston played a different, far more benevolent, Noah in 1966's ''The Bible''.
* HarsherInHindsight: [[spoiler:The sexual abuse Noah Cross commits within the movie]] could be seen in a whole new light after attention was brought to a real-life court case implicating Polanski himself in something similar. [[http://www.cracked.com/article_19918_6-terrible-decisions-that-gave-us-great-movie-moments_p2.html This]] article on Website/{{Cracked}} explicitly notes the parallels between how [[spoiler:Cross]] gets off [[KarmaHoudini scott-free]] for his crimes and how Polanski himself escaped jail time by fleeing the U.S.[[note]]This is technically not quite what happened, as Polanski's tvtropes page attests. Polanski confessed to his crime, and as per a plea bargain accepted to spend time in Chino Prison as part of a psychiatric evaluation. Polanski spent 42 Days in Chino, honouring his part of the plea bargain and was released early as per the recommendation of his probation officer. It was only when Judge Rittenbrand decided to back out of the plea bargain and planned to bring fresh charges that Polanski decided to flee, an action which the prosecutor of that case admitted was a justified response. In other words, unlike Cross whose crime is never unearthed and who does not admit to his crimes, Polanski both admitted to his crime and subjected himself to the justice system[[/note]]
* HilariousInHindsight: After this film was released, Creator/JoanCrawford declared that Faye Dunaway would be perfect to play her in a biography. [[Literature/MommieDearest Okay, stop laughing, it's true.]]
** Those who saw ''Film/WhoFramedRogerRabbit'' first will enjoy Roger's "[[GettingCrapPastTheRadar pattycake]]" scene a lot more after watching the opening scene in ''Film/{{Chinatown}}''.
* ItWasHisSled: It's such a famous film that "[[spoiler:[[WhamLine She's my sister and my daughter!]]]]" has lost its power as TheReveal to many.
* MemeticMutation: "Forget it, _____. It's _______"
* MoralEventHorizon: If there was any kind of sympathy for [[spoiler:Noah Cross]], it is long gone when it's revealed that [[spoiler:he fathered a daughter [[ParentalIncest upon his own daughter,]] Mrs. Mulwray, by rape]].
* OneSceneWonder:
** An interesting use of this trope. Creator/JohnHuston, as Noah Cross, has all of two (three at a push), very brief, scenes in this very long film. And he's often remembered as [[spoiler:one of the most despicable villains in cinematic history.]]
** Also Diane Ladd as "Mrs. Mulwray" (aka Ida Sessions), who hires Gittes in the first scene. She does turn up a couple times later, first as a voice on the phone and then [[spoiler:as a corpse]].
** And [[CreatorCameo Polanski himself]], as the Man with the Knife. "You're a very nosy fella, kittycat. You know what happens to nosy fellas? No? Wanna guess?"
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