[[quoteright:315:http://static.tvtropes.org/pmwiki/pub/images/knight_and_day_poster1_8364.jpg]]

2010 SummerBlockbuster ActionAdventure movie starring TomCruise as secret agent Roy Miller, who might be trying to clear his name or who might be trying to cover up a horrific multiple-murder and theft of a potent [[YouFailPhysicsForever free energy]] [[MacGuffin MacGuffin]], and CameronDiaz as June Havens, a WrenchWench ActionGirl sidekick embroiled in spy games that go way over her head.

----
!!This film provides examples of:

* ActionGirl: [[spoiler: June, by the end of the movie]].
* ActionHero: Played by TomCruise, of course.
* ActionSurvivor: June, for most of the movie.
* AdrenalineMakeover: Played straight and subverted; June Havens certainly TookALevelInBadass after significant bits of the plot, but up until the halfway point of the movie she got progressively more worn down as the action progressed.
* {{Adorkable}}: Roy and Simon.
* AffectionateParody: Cruise plays Roy Miller as basically the loonier side of JerryMaguire (think "help me help you!") crossed with the tireless CrazyAwesome secret agent [[Film/MissionImpossible Ethan Hunt]].
* AllYourBaseAreBelongToUs: [[spoiler: Roy Miller's private island in the Azores is attacked ''and blown up'']].
* AlwaysSaveTheGirl: Subverted: [[spoiler: June deliberately gets herself kidnapped so that she can get back together with Roy, assuming that he'll save her. He does, but he has no idea that she's there at the time, as he's around for a completely different reason]]. He does take a moment in the middle of a firefight to step out from cover and kiss her when she guilt talks him into it, though.
* {{Angrish}}: June's reactions in much of the first half of the movie.
* AntiHero: Roy Miller ''may'' have killed dozens of innocents in cold blood and stolen the [[MacGuffin perpetual energy battery]]; he ''definitely'' kills dozens of agents in cold(ish) blood and drags an [[ActionGirl unknown innocent]] into the fight with him, though it's fairly obvious that he has little to no choice about the matter.
* ArmorPiercingSlap: Subverted.
--> "Sorry, reflex. Hit me again; I won't dodge this time."
* YouFailPhysicsForever: [[SubvertedTrope Subverted]], but not at first. The Zephyr is presented as a true perpetual motion machine: it will ''never'' run out of energy, ever. However, over the course of the film, the battery slowly builds up heat and [[spoiler:eventually explodes, taking out the villain in his moment of triumph]].
* BadassDriver: ''both'' Roy and June. June manages to pull off some amazing moves going the wrong way on the highway while controlling a runaway car from the back seat reaching over the corpse of the former driver: Roy calls her a "natural."
* BelligerentSexualTension: Lampshaded by June after she's had a truth serum injected into her body and admits to Roy that all their crazy adventures make her want to have sex with him. His reaction is priceless.
* BigDamnHeroes: Roy, in Seville.
* BrokenRecord: "We'll keep you safe, June."
* BodybagTrick: Done backwards; a supposed corpse is wheeled ''out'' of the hospital.
* BondVillainStupidity: Yep. Mind you, at that point, the bad guy thought he had already won, so the survival of the good guys was reasonably irrelevant.
* CaptainObvious: It pops up from time to time.
-->'''Roy:''' You stay here, I'm going to go have a chat with those guys in the tunnel... Actually, I'm going to go kill them. Wait right here.
* CasualDangerDialogue: Roy personifies this.
* ChekhovsGag: Almost everything Roy says to June, funny or not.
* ChekhovsSkill: At one point Roy demonstrates to June how to escape from a reverse choke hold. [[spoiler:A few scenes later a would-be assassin puts her in: what else: a reverse choke hold]].
* CloudCuckooLander: ''Every'' screw in Roy's lovable head is loose, as exemplified by ''this'' line:
--> '''Roy:''' No one follows us, or I kill myself and ''then'' her!
* CompletelyMissingThePoint: Rodney, for a man going for lieutenant, you're more dense than a concrete training building.
* ComeWithMeIfYouWantToLive
* ContractOnTheHitman
* DeadFootLeadfoot: Causing one of the BadassDriver incidents.
* DorkKnight: Roy.
* DuelingMovies: Came out around the same time as ''{{Killers}}'' and while their plots are not identical, they are similar enough that the general public noticed the oddity of their close release dates. Ultimately, ''Killers'' ended up being panned(11% on RottenTomatoes) and barely turned a profit at the box office, while Knight and Day received more moderate reviews and grossed $260+ million.
* [[EscapeConvenientBoat Escape Convenient Plane]]
* FightMagnet: Given that [[MacGuffin the Zephyr]] is being hunted by everyone from a covert ops organization to Spanish gun runners, it's not too surprising.
* {{Foreshadowing}}: Some of Simon's writing early in the movie reads [[spoiler:"[=CuO3=] = boom!!"]]. Guess what happens to [[spoiler:the battery]].
* GenreSavvy. June: When being interrogated by Antonio. Says something like "The Good Guy is probably round the corner"
* GotVolunteered: June. Several times.
* GovernmentAgencyOfFiction
* GunsAkimbo
* HeroicSacrifice: [[spoiler: Roy, taking a bullet for Simon. He survives, though]].
* ImperialStormtrooperMarksmanshipAcademy: Done so much it stops being funny. The baddies are entirely worthless with guns, and [[HeroTrackingFailure can't track Tom's character]] while he ''calmly walks over to kiss the girl'': let alone while he's running. They also have trouble hitting ''still'' targets.
* IncrediblyObviousTail
* IronicEcho: Roy's lines to June when they were alone on the island are altered and repeated to him by June at the end of the film.
* [[ItsAlwaysMardiGrasInNewOrleans It's Always San Fermin In Spain]]: Don't worry about getting the right town either.
* ALoadOfBull
* LodgedBladeRecycling: June accidentally impales an assassin with a knife, followed by the assassin pulling it out of himself to attack June with.
* MadeOfIron: The assassin on the train. ''Wow.'' Most of the stuff is just standard movie things, until he gets stabbed in the chest with a ''knife''! The assassin also {{No Sell}}s June whacking him in the head with a frying pan.
--> '''Simon:''' [[WhyWontYouDie Oh my God! Just die!]]
* {{Mangst}}
-->'''Roy:''' That hurt more than I thought it would.
* MeetCute: Faked by Roy to get an item through customs via the unwitting June.
* MistakenForBadass: June, by the spy agency. Later on, though, [[TookALevelInBadass she gets better]].
* NeutralFemale: June, but not during the action sequences; she's actually this during much of the ''plot'', being very decidedly on one side or the other when action breaks out.
* NiceGuy: Roy, even when thrown into walls by super-strong Assassins, is a soft-spoken gentleman who does not curse or use swear words ''once'' throughout the entire movie. In one of the heart-warmeyer moments of the film, Roy has left June a note saying he was happy to have met her, and a second, reminding her to 'Eat a good breakfast, June'. He'd left her an omelette.
* NoEscapeButDown: [[spoiler: and into the river]].
* NoOneCouldSurviveThat: [[spoiler: Roy, after falling into the river. Every one assumes him to be dead despite never finding a body]].
* NoOneShouldSurviveThat
* OffscreenMomentOfAwesome: Roy's antics when June is drugged, because we're following her point of view.
* ThePlan- Roy's many, many plans.
* PrecisionFStrike: June gets one in an argument with Roy about his "warning" not to get on a plane not being very effective, she then says that a better warning would've been saying something like "June, if you get on this plane, you will fucking die!"
* {{Protectorate}}: Simon and the Zephyr.
* RasputinianDeath: Lampshaded.
* RatedMForManly: Constant action, check; spy games, check; explosions, check; firefights, check; Cameron Diaz in a bikini...
* RedundantRescue
* SlapSlapKiss: Roy and June, naturally.
* ShootTheFuelTank
* SicEm
* SoleSurvivor: Simon, Roy, or Fitz, depending on your point of view. The massacre happens in the backstory, and most of the movie is trying to figure out exactly who did what to whom.
* StopOrIShootMyself: "No one follows us, or I kill myself and then her!"
* TeenGenius: Simon, who's managed to solve the energy crisis despite the fact that he's "barely out of high school".
* ThemeNaming: June and her sister April.
* TimeBomb: Only there's no visible counter, and the object in question isn't actually supposed to be one.
* TookALevelInBadAss: [[spoiler: June, by the end of the film]].
* TorosYFlamenco: They had the decency to shoot in the real Spain, but then put [[ItsAlwaysMardiGrasInNewOrleans the running of the bulls]] [[YouFailGeographyForever in Seville]]...
* TrailersAlwaysLie: Many of the scenes in the official trailer never actually made it into the movie.
* TrainEscape: Streetcars, actually, but no less awesome.
* UnderestimatingBadassery: Although, given that Roy's being chased by his own organization, they ''should'' know better.
* YouAreTooLate: Literally. [[spoiler: The bad guy takes off in a plane with the highly sought after [[MacGuffin Zephyr battery]], pausing only to take a shot at Simon]].
----