* ''YMMV/LethalWeapon1987''
* ''YMMV/LethalWeapon2''
* ''YMMV/LethalWeapon3''
* ''YMMV/LethalWeapon4''
* [[YMMV/LethalWeapon2016 2016 series]]

!!Series wide
* AngstWhatAngst: Rianne's high school boyfriend is killed right in front of her before she's kidnapped by special forces mercenaries. Later at a hostage swap, she's in the middle of a gunfight where men are killed all around her before she takes off in a car (with a dead body in the passenger seat), possibly leaving her father to die before they reacquire her. She then watches them torture her dad. When that doesn't work, she's threatened with rape before Riggs saves them in another violent firefight. This should probably lead to years of therapy and PTSD. By the end of the movie she's back to her usual self, and never seems to suffer any ramifications going forward.
* SugarWiki/AwesomeMusic: The scores for all four films were co-written by Music/MichaelKamen and Music/EricClapton. Do the math.
* BaseBreakingCharacter: Leo in the third and fourth movies. Funny and endearing, or irritating and unnecessary? You decide.
* BetterOnDVD: The Director's Cuts of the first three films reinstate DeletedScenes, including the sniper scene from the first film.
* CompleteMonster: [[YMMV/LethalWeapon1987 Peter McAllister & Jack Joshua]]; [[YMMV/LethalWeapon2 Arjen Rudd & Pieter Vorstedt]]; and [[YMMV/LethalWeapon2016 Gideon Lyon]]. See those pages for details.
* ContestedSequel: Whilst the first two movies are by and large considered buddy-cop/action classics, 3 and 4 [[BrokenBase are much more divisive]]. To some they are installments that have reached the point of self-parody in terms of their level of goofiness with things like the continued presence and pushing into center stage of the Leo Getz character as well as not having as strong of scripts after the departure of Creator/ShaneBlack. Whilst to others they while not as good as the first two are solid entries that continue to show off the great chemistry between its leads, match if not up the ante in at least some of the action scenes, and rounds off the story-arcs of its characters well. Particularly Riggs who finishes his progression from a crazed suicidal man to a more down to earth and at peace guy who can move on with his life and allow himself to be happy.
* CrazyIsCool: Riggs. "You think I'm crazy? ''You think I'm crazy, I'll show you crazy!''" *proceeds to slap himself in the face multiple times while wailing like Curly from Film/TheThreeStooges, pokes the drug dealer in the eyes, slaps the other drug dealers, and [[LetsGetDangerous pulls out a gun]].
* EvilIsCool: Mr. Joshua, Pieter Vorstedt and Wah Sing Ku.
* FriendlyFandoms: With ''Franchise/DieHard''. It helps that they're both [[AnAsskickingChristmas Christmas movies]].
%%* HoYay: Riggs and Murtaugh are just loaded with this.
* MemeticMutation: Creator/DannyGlover has always been, and will always be, [[strike:[[BeamMeUpScotty getting]]]] too old for this shit. Also, if you made it through the early 90s without hearing people quote "They FUCK YOU at the drive-thru!" everywhere you went, you must have been in a coma.
* MoralEventHorizon: Every villain of the series has crossed this.
** Joshua in the first movie crosses it when he kidnaps Rianne.
** Vorstedt in the second movie crosses it when he [[spoiler: drowns Rika, and later reveals that he was the one who killed Riggs's wife.]]
** Travis in the third movie crosses it when he either drowns one of his own men in cement, or when he kills a rookie cop, Edwards, in a shootout at the police station [[DiedOnTheirBirthday on the cop's birthday, no less]].
** Wah Sing Ku in the fourth movie crosses it when he [[NeckSnap strangles Hong]] to get his uncle to cooperate. Then he kills his uncle [[YouHaveOutlivedYourUsefulness after the counterfeit plates are completed]] and Uncle Benny [[YouHaveFailedMe for revealing]] [[HeKnowsTooMuch too much information]].
* MyRealDaddy: Many fans and critics credit the series' quality and success to writer Creator/ShaneBlack. However, many of the series' signature elements, including the humor, were added by Jeffrey Boam in his uncredited rewrites to the first film and screenplays to the second and third. Black's original treatments were considerably DarkerAndEdgier than the final product, with the character of Riggs being an unstable psychopath killed off at the end of the second film.
* OnlyTheCreatorDoesItRight: Creator/ShaneBlack was only involved with the first two films. The first is considered a classic, while the second is widely considered the best of the sequels. The third and fourth films are somewhat divisive.
* {{Sequelitis}}:
** A not too drastic example, but most noticeable with part 4.
* TheyWastedAPerfectlyGoodCharacter: Plenty of fans liked the MauveShirt detectives from the second film (a colorful bunch played by some notable action movie actors) and would have liked to see them to play bigger roles in that movie or (if more than one of them had survived it) the franchise in general.
* VindicatedByHistory: ''3'' & ''4'' are much more fondly looked on nowadays. They aren't as popular as ''1'' or ''2'', but general consensus is that the quality of the sequels is much more consistent than [[Film/RamboIII other]] [[Film/Terminator3RiseOfTheMachines sequels]] [[Film/TerminatorSalvation to '80s]] [[Film/TerminatorGenisys action]] [[Film/AGoodDayToDieHard films]].
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