* ActorInspiredElement: Creator/RobertDeNiro decided that Ace should hound Ginger about every last dollar she spent.
** The sunglasses that Ace wears in the scene when he meets Nicky in the desert were selected by [=De Niro=].
* AwardCategoryFraud: Creator/SharonStone's performance was phenomenal and well-deserving of a nomination, but some felt it should have been for Supporting rather than Lead.
* AwesomeDearBoy:
** When Creator/JamesWoods heard that Creator/MartinScorsese was interested in working with him, Woods called Scorsese's office and left the following message: "Any time, any place, any part, any fee."
** Creator/SharonStone once told her acting coach, "I want to be good enough to work with Creator/RobertDeNiro."
* CaliforniaDoubling: In addition to playing itself, Las Vegas doubles for Kansas City, Chicago, and San Diego.
* CastTheExpert:
** Frank Cullotta was a longtime Vegas enforcer whose character, renamed Frank Marino, figures heavily in the film. Cullotta himself shows up in two scenes near the end as a hitman taking out different characters.
** Oscar Goodman, who plays Sam Rothstein's attorney, is in real life a lawyer who defended several reputed mobsters with Las Vegas connections. In June of 1999, he was elected Mayor of Las Vegas.
** The jewelry store owner who gets robbed by Nicky's boys is an actual Las Vegas jeweler. His line "I just got a shipment of diamonds from Israel" was not in the script.
* CreatorCouple: Creator/JoePesci's then-wife Claudia Haro played Trudy, the co-hostess and band leader of "Ace's High". They divorced and she remarried. She was convicted in 2000 of two counts of attempted murder for hiring a hitman to try and kill her other ex-husband, a stuntman.
* TheDanza: Creator/FrankVincent as Frank Marino.
* EnforcedMethodActing: Joe Pesci's ribs were broken during the scene where his character is forced to watch his brother be killed in front of him. His screams of pain as one of his former goons is on-top of him are real. Scorsese thought his "acting" wasn't good and screamed "Be in the moment! Be in the moment!"
* FollowTheLeader: This is a movie very much in the style of ''Film/{{Goodfellas}}'', with a similar narrative arc, characters, structure and editing, something it got a fair bit of criticism for when it came out. Creator/MartinScorsese has since admitted in interviews that the film was a studio assignment for Universal, who wanted ''Goodfellas'' but, y'know, for them, and who got together that film's director (Scorsese), screenwriter (Nicholas Pileggi, again writing based on a non-fiction book he wrote about mob activities in the '70s) and a big chunk (Creator/RobertDeNiro and Creator/JoePesci) of the cast.
* HarpoDoesSomethingFunny: Most of the conversations between Creator/RobertDeNiro and Creator/JoePesci were improvised. Creator/MartinScorsese would tell them where to start and where to end. The rest was up to them.
* HypotheticalCasting: According to Alan King, Frank "Lefty" Rosenthal, upon whom Sam "Ace" Rothstein was based, wanted Creator/RichardWidmark to play him. However, Widmark was eighty years old by that time, and, therefore, not a practical choice.
* OnSetInjury: While filming his death scene, Creator/JoePesci broke the same he rib he broke on ''Film/RagingBull''.
* PlayingAgainstType: Creator/MartinScorsese cast a few comedians in very non-comedic roles.
** [[Creator/DonRickles Don freaking Rickles]] in a Scorsese movie? Playing an intimidating mob collaborator? More to the point, none of his classic caustic humor shows up and he plays him as a serious yet loyal and sympathetic number two to Ace.
** Creator/AlanKing plays the mob facilitator Andy Stone.
** [[Series/TheSmothersBrothersComedyHour Dick Smothers]] plays a corrupt Nevada senator.
** Creator/KevinPollak plays Tangiers titular head Philip Green.
** John Bloom, ''a.k.a.'' Joe Bob Briggs[[note]]the comedic movie host of ''Joe Bob's Drive-In Theater''[[/note]], plays the doofus nephew of a senator who works at the Tangiers.
* RealLifeRelative:
** Creator/MartinScorsese's mother Catherine cameos as Artie Piscano's mother, it was her eighth and final cameo role in any of her son's films.
** Martin's daughter Cathy plays Artie's daughter.
* RealitySubtext: Scorsese doesn't share the nostalgia for the GloryDays of Vegas in TheSeventies. But Scorsese was a part of the MediaNotes/NewHollywood movement, a period where filmmakers like Creator/FrancisFordCoppola, Creator/RobertAltman, Creator/StevenSpielberg and Creator/GeorgeLucas ran wild with innovative and provocative movies like ''Film/ApocalypseNow'' or ''Film/TaxiDriver'', an era which was a sort of Wild West of filmmaking, with runaway budgets and the rise of MediaNotes/TheAuteurTheory. A series of big-budget bombs like Spielberg's ''Film/NineteenFortyOne1979'', Coppola's ''Film/OneFromTheHeart'', Creator/{{Michael Cimino|Director}}'s ''Film/HeavensGate'' and Scorsese's own ''Film/NewYorkNewYork'', however, saw the New Hollywood era come to an abrupt end -- auteur theory lost out to tight studio control and directors were never again given the same budgets or creative freedom. With that in mind, ''Casino'''s [[EndOfAnAge lament on the death of the old Las Vegas]] takes on a whole new meaning.
-->''"It should have been so sweet, too. But it turned out to be the last time that street guys like us were ever given anything that fuckin' valuable again."''
* ReferencedBy:
** The pre-titles scene of ''Film/SpiderManHomecoming'' introducing The Vulture and his gang prominently features "Can't You Hear Me Knocking" by Music/{{The Rolling Stones|Band}}, which also features in a similar sequence introducing the Hole in the Wall Gang.
** One of the targets of mafia spoof ''Film/JaneAustensMafia'' starring Jay Mohr, notably spoofing ''Casino'''s opening credits (where instead of Sam's body superimposed over the flames, Mohr's character is doing random things like catching a frisbee) and the cattle prod scene (where the inept security zaps everyone ''but'' the cheater).
** The "Pharaoh's Wad" episode of ''WesternAnimation/{{Squidbillies}}'' is a homage to ''Casino''. After Dan Halen gets fed up with Early cheating his machine, he smashes Granny's hands with a hammer. Sheriff then questions Early if he wants the hammer and the money or just walk out, Early immediately takes ''both'' the hammer and the money, with Sheriff [[GenreBlindness realizing that's how it wasn't supposed to go]].
* SparedByTheCut: In the original script, Lester Diamond was supposed to be shot in the desert by Nicky as a favor for Sam.
* SurprisinglyLenientCensor: Creator/MartinScorsese stated before the film's release that he created the "head in the vise" scene as a sacrifice, certain the MPAA would insist it be cut. He hoped this would draw fire away from other violent scenes that would seem less so by comparison. When the MPAA made no objection to the vise scene, he left it in, albeit slightly edited.
* ThrowItIn:
** Most of Creator/JamesWoods' lines were improvised. Including the phone call with Ginger after her wedding. Originally, Woods was not supposed to speak during that scene. Woods came up with idea that Lester would be with a prostitute and doing cocaine while on the phone with Ginger.
** Creator/RobertDeNiro's tirade at the incompetent casino employee played by John Bloom was partly improvised, which includes calling Briggs a "momo." After the take, Scorsese asked De Niro what a "momo" is, and De Niro answered that he wasn't sure.
* WhatCouldHaveBeen:
** Creator/KateCapshaw, Creator/CameronDiaz, Creator/MelanieGriffith, Creator/NicoleKidman, Creator/MichellePfeiffer,[[note]] She turned it down feeling it was too similar to her role in ''Film/Scarface1983''[[/note]] Creator/ReneRusso and Creator/UmaThurman were considered for Ginger. Music/{{Madonna}} was almost cast, but Creator/SharonStone convinced Creator/MartinScorsese to give her the role.
** Creator/BobNewhart was considered for Andy Stone.
** Creator/MartinLandau mentioned in a 1995 interview, after winning an Oscar, that he was offered a role in the film, but he turned it down because he thought that "there was nothing to the part."
** In the desert scene, Joe Pesci was supposed to have voice over dialogue in his car. That part of the scene was cut out.
** Scorsese originally intended to use "House of the Rising Sun" by Music/TheAnimals over the opening credits.
* WrittenByCastMember: The scene between Sam and Pat Webb in Ace's office was rewritten by L.Q. Jones upon Creator/MartinScorsese's request because Scorsese felt that he had not written the western cowboy character very well.
-----