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* ''YMMV/DieHard2''
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* AdaptationDisplacement: Occurs frequently due to DolledUpInstallment.
** The first movie was based on the novel ''Nothing Lasts Forever'' by Roderick Thorp.
*** Which itself is a sequel to ''TheDetective'', which itself was turned into a film starring FrankSinatra.
** The second one was based on the novel ''58 Minutes'' by Walter Wager.
** The third one was originally an unrelated screenplay called ''Simon Says''.
** And the fourth movie was [[BasedOnAnAdviceBook based on a magazine article]] written in ''Wired''.
* SugarWiki/AwesomeMusic: Beethoven's 'Ode to Joy' from the first film. It's also featured in the trailers for all the sequels.
** In terms of music actually written for the movies, Michael Kamen (the first three movies) and Marco Beltrami (who took over following Kamen's untimely demise) turn in some fine work such as Kamen's "The Battle" in the first one and "Shootout And Snowmobile Chase" from the second one, and Beltrami's "Truckzilla" in the fifth.
* BaseBreaker: Matt in the fourth film. Some saw him as [[TheScrappy annoying]] and [[TheLoad useless]], while others admired his courage in [[HypercompetentSidekick assisting John through all of the dangerous insanity]] and even [[TookALevelInBadass killing two bad guys]] (case in point, [[Creator/SamuelLJackson Zeus]] in the third film didn't kill any).
* BoringInvincibleHero: An accusation leveled at the fourth film by many including, of all people, Michael Scott of ''Series/TheOfficeUS''.
* ContestedSequel: All of the sequels, to some extent. ''With a Vengeance'', directed [[OnlyTheCreatorDoesItRight again by John McTiernan]], is the least contested.
** Taken even further with ''A Good Day To Die Hard''.
* ClicheStorm: Alik is your typical America-hating Russian villain in ''A Good Day to Die Hard''. The portrayal of Russia in the movie as a whole is a hailstorm of TheNewRussia clichés that were already dated 20 years ago.
* EvilIsSexy: Maggie Q's character in ''Live Free or Die Hard'', which [=McClane=] comments on.
--> ''"That girl of yours? Smokin' hot."''
** Her boyfriend, [[BigBad Thomas Gabriel]] (played by Timothy Olyphant), is quite easy on the eyes himself.
** This trope is pretty much a given when your villain is being played by Alan Rickman.
*** Or Jeremy Irons. In a tank top.
** Katja in ''With A Vengeance''.
** BikerBabe Irina in ''Good Day.''
* FirstInstallmentWins: Every ''Die Hard'' movie has been a hit, but only the first is a landmark in popular culture.
* HilariousInHindsight: In ''Die Hard 2'', the old lady sitting next to [=McClane's=] wife on the plane complains that she "[[Film/{{Speed}} should have taken the bus]]." [[DieHardOnAnX Well, actually...]]
** And then in ''With A Vengeance'', he has to stop a bomber from exploding a bomb on a subway. It would seem ''Film/{{Speed}}'' is [[DieHardOnAnX even more like Die Hard]] (On A Bus [[spoiler:and Subway Train]]) than first supposed.
* GenreTurningPoint: The first ''Die Hard'' practically set the standard by which all future action films were judged, in terms of their heroes, [[TheVillainMakesThePlot villains]], etc. On top of that, it even created an action [[DieHardOnAnX subgenre.]]
* HarsherInHindsight: In ''Live Free or Die Hard'', the BigBad's apparent motivation for messing with America's computer infrastructure is to teach them a lesson for ignoring him about the threats cyberterrorist can pose. In RealLife, Dr. Bruce Edward Ivins was suspected to have caused the 2001 Anthrax attacks for this same reason.
** In ''With A Vengeance'' one of the cops makes an offhand comment to the 1993 bombing of the World Trade Center, and how darned inconvenient it was. Ouch. The shot of [=McClane=] and Zeus running through New York with the towers clearly in the background doesn't help.
*** At one point John says there's a bomb in the trash can and everyone around him thinks he's nuts. If that happened today the whole street would be in a panic.
** Looking at the first three films: a tower gets blown up, a terrorist plot with airplanes, and New York City as the target of terrorist attacks.
** Take a look at the cover. [[WebVideo/TheAngryVideoGameNerd What does this remind you of? It kind of looks like...you know...yeah...]] (It shows the Nakatomi tower with an explosion on the top. The dark strip down the middle makes it look at first glance like two skyscrapers of a similar look to the WTC.)
* HilariousInHindsight:
** In ''Live Free or Die Hard'', [=McClane=] mentions to Farrell about having some ''Franchise/GIJoe'' action figures in his room. In ''Film/GIJoeRetaliation'', BruceWillis plays Joseph Colton, the original G.I. Joe.
** The actor who played Theo, TheEvilGenius from the first film, eventually quit acting and became a college professor.
* ItWasHisSled: Most of the films. Yes, including the 4th. Yes, even on this very website, which makes it very difficult to watch the entire series unspoiled.
* [[GermansLoveDavidHasselhoff Japaneses Love Bruce Willis]]: Japan provides the highest foreign box office gross for all four movies, with the highest gross being 81 million dollars for the third movie. [[http://www.youtube.com/watch?v=jIE3dIzypXI The first movie has been spoofed in Japanese media before]], and even Bruce Willis came to Japan to do some commercials.
** A related, but non-Japan example: ''A Good Day to Die Hard'' was a critical success in Indonesia.
* JerkassWoobie: Karl in the first film. He shows real grief and rage when his brother Tony becomes the first baddie [=McClane=] kills, and loses all interest in the robbery for the rest of the film, so bent is he on avenging his sibling, and who wouldn't be furious if their sibling was killed? (True, [=McClane=] only killed Tony in self-defense, but still.)
* MagnificentBastard: Hans Gruber, [[spoiler: especially when he gets caught at gunpoint by [=McClane=] and almost gets away with simply using an American accent to pretend to be a civilian. And even ''then'', after his henchmen turn up, he manages to do some serious damage to [=McClane=] by taking advantage of his bare feet and [[CombatPragmatist shooting the glass]].]] Also, his brother Simon. It runs in the family.
** [[spoiler:Komorov.]]
* MemeticMutation: "Yippie-kay-ay, motherfucker!"
** The formula for the first movie was such an [[HighConcept easily-codified plot]] that other movies could be summed up for pitches or reviews as "DieHardOnAnX".
** [[http://www.cracked.com/blog/5-reasons-die-hard-is-the-best-christmas-movie-ever-made/ People claiming it's one of the best Christmas films ever.]]
* MoralEventHorizon:
** Hans Gruber's attempt [[spoiler: to blow all the hostages away on the roof]] would have been this.
*** Or even earlier, when he [[spoiler: casually executes Mr. Takagi, who Hans mentions is a family man]].
** It looks like Simon Gruber will cross this when he plants a bomb in a school. Subverted when it turns out [[spoiler:the bomb is fake.]]
* {{Narm}}: Most of ''A Good Day to Die Hard''.
* RetroactiveRecognition: Reginald [=VelJohnson=], AKA Sgt. Al Powell, would play the part of patriarch Carl Winslow ([[TypeCasting another police officer]]) in TV's ''FamilyMatters'' a year after ''Film/DieHard'' was released.
* {{Sequelitis}}: ''A Good Day To Die Hard'' is, at least from a critical standpoint, the weakest movie in the franchise (given the largely negative response, far and away below the other four). While the first four films had enough plot to fill two hours, the fifth barely has enough material to scratch 90 minutes, a bulk of that being action and the rest being exhausted TheNewRussia cliches.
* StrawmanHasAPoint: Gabriel ''did'' try to warn the government who hired him that their security was woefully inadequate...It still doesn't stop him from exploiting those weaknesses to get rich and kill people (and not in that particular order).
* WeirdAlEffect: Everybody knows [=McClane=]'s catchphrase "Yippie-Kai-Yay, [[PrecisionFStrike motherfucker]]!", but few now remember that the line (or at least the "Yippie-Kai-Yay" part) was derived from the western song "Git Along, Little Dogies".