!!The TV series
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* CrowningMusicOfAwesome: Lalo Schifrin's iconic theme tune, still used in parodies and commercials to this day.
** Special mention to Schifrin's scoring during the church climax of "The Heir Apparent" with Cinnamon trying (with some previously supplied help from Barney) to open a puzzle box that only the woman she's impersonating - [[NoCelebritiesWereHarmed who is absolutely not Anastasia]] - could have opened; this particular cue gets reused often in later episodes. [[spoiler: And yes, she does get it open.]]
* EarWorm: It goes hand-in-hand with the Crowning Music of Awesome. '''Everybody''' knows the ''Mission Impossible'' theme song.
** If you watch a few episodes, you'll also find the incidental music running through your head.
* EnsembleDarkhorse: Landau quickly eclipsed star Steven Hill, even though he was only intended as an occasional guest star.
* FairForItsDay: Barney Collier, a coloured man, was TheSmartGuy in a band of geniuses. Also, while Cinnamon's primary task was to provide distractions, everyone treated those distractions as vital, and Cinnamon was clearly a respected team member.
* HarsherInHindsight: "Action!" centered around [[FramingTheGuiltyParty a staged film purporting to show atrocities committed by American troops in Vietnam]]. In light of what was later revealed, it gets uncomfortable fast. On the other hand, the episode also takes some self-deprecating jabs at the movie business and this part resonates as well as it ever did. Some things never change.
* MagnificentBastard: So ''very'' many.
** Special mention has to go to Briggs, however. This was a guy who, in "The Carriers," left an entire town of Russian spies ''to die from bubonic plague.''
* MemeticMutation:
** The show's whole concept - ImpossibleMission is a trope of its own.
** The theme tune still represents clever operations to outwit a target, from jewel heists to squirrels looking for nuts.
** "[[ThisPageWillSelfDestruct This tape will self-destruct in five seconds]]" - especially popular for parodies, where the self-destruct is often over-powered and bad news for the person close to it.
* MomentOfAwesome: Many - for instance, in "The Legend" Rollin pulls the rug out from under the villain of the week and his scheme to resurrect the Nazis through a dummy impersonating Martin Bormann by... ''impersonating Martin Bormann.'' The OhCrap expression on the BigBad's face as everyone else ''heil''s "Bormann" is '''priceless'''.
** In "Death Squad," when Barney and his cellmate are about to be hanged by a corrupt police force for crimes they (certainly Barney) didn't commit, Mr. Collier's refusal of a blindfold drives his formerly nervy colleague to take his punishment like a man and similarly decline. [[spoiler: Fortunately this doesn't become a DyingMomentOfAwesome for either of them, as the rope has been rigged to break by the IM Force as part of the rescue.]]
*** Several instalments, like "The Killer," "The Council" (parts one ''and'' two) and "The Mind Of Stefan Miklos," are basically [[MomentOfAwesome Episodes Of Awesome]].
**** In "Robot," Leonard Nimoy plays (in addition to Paris) Gemini - the double of a deceased premier; usually when he or Martin Landau play multiple characters in an episode with makeup on there's still a touch of IdenticalStranger, but Gemini/the premier genuinely doesn't look anything like Paris. The makeup department (specifically Bob Dawn)'s CrowningMomentOfAwesome for the series.
* {{Narm}}: "Some of that dialogue is terrible, isn't it?" - ''MissionImpossible'' writer-producer William Read Woodfield. Example, from "A Game Of Chess" (which Woodfield and his partner Allan Balter, in fairness, did ''not'' write):
-->'''Jim''': Then we're all set except for the typhoid. Who's got it?
-->'''Rollin''': I do.
* NarmCharm: The series is ridiculous and often centers around problems governments would generally solve in a far more straightforward way (as Martin Landau pointed out, "In reality, there'd be an assassination"). But it's still a lot of fun to watch.
* ValuesDissonance: Originally, the IMF were a group of people choosing to use their specific talents in spy work purely for the good of their nation. (Starting in 1966, still the era of "[[JohnFKennedy Ask not what your country can do for you, but what you can do for your country]].") This wouldn't have worked in the 1996 movie, so it made the IMF a deeply covert part of the US intelligence services. Even in the time of RichardNixon, the idea of American agents covertly manipulating foreign countries as heroes was going out of fashion, and in later seasons the IMF spent most of their time working their wiles on organised crime at home. (Although in the revival and the movies they got to travel around the world again.)

!!The films
* AdaptationDisplacement: Many don't know that the films are based on a TV series.
* AntiClimax: TheReveal of Brandt's big secret in the fourth movie. The reason behind his secretive attitude? [[spoiler: He failed a protection mission that lead to the DisneyDeath of Ethan's wife.]] Given how common it is for someone to be a DoubleAgent or TheMole, its unusual for someone to simply be TheAtoner for something they ''don't actually need to atone for''. [[TropesAreNotBad Saying that]], it makes him a unique entity in being a guy ''capable'' of action hero moves, [[CowardlyLion but without the usual bravery for it]], who is also far more emotional to be so damaged by something Ethan would have shrugged off after a while.
* BetterOnDVD: When it was released in theaters, many people regarded the first film as being extremely difficult to follow, albeit with a great final act making up for things, which in no small part was responsible for the ActionizedSequel nature of the second film. With the benefit of home video releases however, a lot of people have come to appreciate the more nuanced plot of the first film.
* CompleteMonster: The actions of Owen Davian in the third film (selling weapons to terrorists, killing agents by bombs implanted in their heads, [[NoHoldsBarredBeatdown brutally beating up]] the defenseless hero in front of his equally defenseless wife) are bad enough, but what really sets him apart are his complete lack of any redeeming qualities and incapability of showing any other emotion than annoyance, anger, and a creepy combination of DullSurprise and sadistic glee . Hearing him count to ten while holding Ethan's wife hostage execution-style is pants-shitting scary.
-->''"What I did to your friend was....fun. It was fun."''
%%Do not add any other entries without going to the cleanup thread first.
* CrowningMusicOfAwesome: The ''Mission: Impossible'' theme. The version in the first film even made it onto top-ten charts around the world.
** The movie version is so closely associated with Tom Cruise that it's the background music in the infamous "Happyology" award video that kicked off the Anonymous protests against "Happyology". If you listen closely you'll notice there's no looping, someone is actually strumming the ''Mission Impossible'' theme for about fifteen minutes.
*** Once you get beyond the theme tune, the films's scores are pretty awesome as well (DannyElfman did the first one, HansZimmer the second and Creator/MichaelGiacchino the third and fourth).
*** Of particular note is "Kremlin with Anticipation" from ''Ghost Protocol'', with the Ominous Russian Chanting.
*** ''Ghost Protocol'''s version, "[[http://www.youtube.com/watch?v=HJN54EGkkWc Light the Fuse]]", is just ''insane.''
* EarWorm: You're now hearing the theme song in your head, and it will be stuck there for quite some time.
* EnsembleDarkhorse: Ving Rhames who is the only actor besides Tom Cruise to appear in all of the films.
** Simon Pegg is so far the only actor aside from Cruise and Rhames to appear multiple times as a team member.
* EvenBetterSequel: ''Ghost Protocol'' is easily the best-reviewed film of the series, with 93% on Rotten Tomatoes.
** The third film was also more well-reviewed than either of its predecessors overall.
* FanonDiscontinuity: Fans of the original series like to pretend the films never existed mainly due to [[spoiler: Phelps turning out to be a villain.]]
* FunnyAneurysmMoment: The trailer for the fourth film [[spoiler: shows the bombing of the Kremlin, a major symbol of the Russian government]]. The trailer was played on the same day as the terrorist attacks in Oslo, Norway.
* GeniusBonus: From ''M:I3'': When Brassel is dressing down Ethan and his boss, he refers to Davian supplying 'gas centrifuge technology' (used for uranium enrichment) and clarifies that when he refers to him as The Invisible Man he's referring to the HG Wells version, not the novel about race written by (Ralph) Ellison.
* HilariousInHindsight: After ''Film/ShaunOfTheDead'' became a big hit, an interviewer asked Creator/SimonPegg if he was going to do the whole Hollywood thing now, to which he replied "It's not like I'm going to be in ''Mission: Impossible III''". Guess again, Simon! (It's not the only time he's [[Series/{{Spaced}} made a prediction]] like [[Film/StarTrek that one]].)
** WordOfGod says William Brandt was put in the fourth movie so that he could become the series' new protagonist if TomCruise ever left. In the end, Cruise stayed on for the fourth movie...but around the same time, Jeremy Renner ''did'' end up becoming Film/TheBourneSeries' new protagonist after Creator/MattDamon dropped out of ''The Bourne Legacy''.
** Josh Holloway's [[DeadStarWalking brief role]] in the botched operation [[ActionPrologue that starts the film]] has him using AugmentedReality contact lenses to pinpoint a target-something that his character on Series/{{Intelligence 2014}} has as a superpower.
* InNameOnly: The view of many fans of the TV series, as well as the ''cast'' of said series.
* MoralEventHorizon: Ambrose has his about five minutes into the second movie when he crashes a plane full of innocent people into a cliff. Supervirus be damned.
** Hendricks crosses it by [[spoiler:committing suicide to ensure his EvilPlan succeeds]]. This shows [[JumpingOffTheSlipperySlope just how far off the slippery slope (and it's a very slippery one, indeed) he's jumped]] and that he [[spoiler:values his plan more than his own life]].
* [[spoiler:NarrowedItDownToTheGuyIRecognize: Jon Voight turns out to be the first film's villain.]]
* NightmareFuel: The effects of the Chimera virus from the second film. It has a twenty-hour incubation period, after which it sets about destroying your red blood cells. The medical pictures of its first victim show an emaciated man with horribly mottled skin and blood coming from his nose and mouth, as if he has internal bleeding ''everywhere'', just underneath his skin. [[CruelAndUnusualDeath What a way to die]].
** The Burj Khalifa climbing sequence from ''Ghost Protocol''. Just the notion that the slightest slip-up meant a long fall down for Ethan makes the sequence ''very'' uncomfortable to watch, especially for those with a fear of heights. Watching the scene in full IMAX just ups the vertigo factor; the sequence is credited with the huge success ''Ghost Protocol'' had in IMAX.
* RecycledScript: Both the first and third movie involve [[spoiler: Ethan being set up by [[TheMole a mole]] in [=IMF=] who isn't revealed until near the end, and who tries to frame the boss of the organization who spends time as an AntiVillain trying to [[DepartmentOfRedundancyDepartment hunt down Hunt]], with the audience left unclear if its because the boss really thinks Hunt is a traitor or because the boss ''is'' the traitor. In both their actions force Ethan to go rogue and steal the MacGuffin that the bad guys are after for them, and in both TheMole is in league with an arms dealer. Each movie sees Hunt's family being dragged into the plot to get at him, sees a fairly traditional [=IMF=] plot go off without a hitch only for the team to be ambushed after the fact, and features a reference ot Ethan evading airport security despite [=IMF=] putting "a guy at the airport".]]
* SophomoreSlump: While some moviegoers appreciated the easier-to-follow storyline. the second movie is considered inferior despite the flashy action. The third and fourth films got things back on track, and are the best reviewed films in the series.
* TheissTitillationTheory: Maggie Q's dress in the third film's Vatican sequence. To quote Phillip Seymour Hoffman's reaction, "You're wearing a tablecloth!"
** Complete with PantyShot when her character draws out [[spoiler: a bomb detonator to fake Davian's death]] from her leg.