Spectacular, big-budget comedy film, directed by none other than Creator/StevenSpielberg, which takes place, [[SarcasmMode surprisingly enough]], [[ExactlyWhatItSaysOnTheTin in the year 1941]]. The script was written by Creator/RobertZemeckis and Bob Gale.

The storyline follows the panic that ensues when, in the days after Pearl Harbor, paranoid Californians believe another attack is imminent. It's [[VeryLooselyBasedOnATrueStory very loosely]] based on [[http://en.wikipedia.org/wiki/Battle_of_Los_Angeles actual events]] (which, for one thing, actually occurred in 194'''2''').

Spielberg, with the combined backing of ''two'' major studios (Creator/{{Universal}} and [[Creator/ColumbiaPictures Columbia]]), spared no expense on this film. It has special effects rivaling those of "serious" UsefulNotes/WorldWarII epics and the cast reads like a who's who list of comedy in the [[TheSeventies 1970s]]. All in the service of {{Slapstick}}. Unfortunately, it was a critical bomb and received disappointing box office numbers (though it wasn't the complete flop it's usually remembered as), and stands as the one black mark in Spielberg's otherwise-outstanding run of blockbusters between 1975 and 1982. It has defenders, but they are small in number and most of them ''still'' agree it isn't as good as the other movies from this period.

Not under any circumstances to be confused with ''[[Literature/NineteenEightyFour Nineteen Eighty-Four]]'', or ''1941'', the third game in Capcom's ''VideoGame/NineteenFortyTwo'' video game series.
!!Tropes include:

* AbhorrentAdmirer: {{Exaggerated}} with both Stretch and Maxine in different ways - Stretch's pursuing of Donna is extremely creepy and evocative of rape, while Maxine, knowing and seeing how Stretch is terrorizing Donna, declares him the 'perfect man' and spends the rest of the film chasing after him, screaming his name, and punching anyone who gets between her and 'her man'.
* AcmeProducts: Acme Turpentine.
* TheBadGuyWins: [[spoiler:The Americans manage to level their own town and shoot down two of their own planes when all is said and done. The Japanese actually destroy a land-based American target and suffer no damages.]]
* BarBrawl: An epic one ensues right after the Jitterbug tournament, which turns into a riot in the street.
* BerserkButton: Stretch whenever he comes in contact with eggs.
* BrokenStreak: The one black mark on Spielberg's career from 1975 to 1982. In fact, the film actually wasn't the huge flop it's remembered as, it's just that all four of his other films in that period were such huge hits that its more modest success couldn't measure up.
* TheCameo:
** Creator/JohnLandis plays the dust-covered soldier who delivers a message to Stilwell.
** Creator/JamesCaan can be glimpsed as one of the participants in the USO brawl.
** A deleted scene has John Milius as a man dressed as Santa, doing an impression of "Bigfoot caught in your headlights" that he often amused the rest of the crew with. After filming it they came to their senses, realizing (in those pre-Internet days) that absolutely no one besides the people who worked on the movie would get the joke.
* CombatPragmatist
-->'''Wally Stephens:''' I know I can't beat you in a fair fight.\\
''''Stretch' Sitarski:''' ''(scoffs)'' Stupid, I don't fight fair.\\
'''Wally Stephens:''' Neither do I!\\
''(kicks Stretch [[GroinAttack in the crotch]], then hits him across the face with a belt of .30 calibre machine-gun ammo; Stretch smiles dumbly for a second then falls over)''
* ComicalOverreacting: How Stretch reacts to being in contact with eggs, which he hates.
* DoesThisRemindYouOfAnything: The opening scene where a skinny-dipping woman finds herself clutching the upthrusting periscope of a surfacing Japanese submarine (also serves as a hilarious ''Film/{{Jaws}}'' take-off -- it's even the same actress who was in the corresponding scene).
-->'''Lucky Japanese Lookout:''' [[JapaneseRanguage Horrywood! Horrywood!]]
* DoesntLikeGuns: Mrs. Douglas is angrily declaring, "[[TemptingFate I will not have guns in this house!]]" when the muzzle of an ack-ack cannon comes crashing through the front door.
* DoNotDoThisCoolThing: Referenced in-universe. As the artillery crew is setting up the anti-aircraft gun in the Douglas family's yard, Sgt. Tree explicitly tells Ward what not to do with it - all the while demonstrating every step in the aiming/firing process. HilarityEnsues when Ward later tries to use the cannon against the Japanese sub and nearly destroys his own house instead.
* DrivesLikeCrazy: The aerial variant, namely the dogfight between Donna Stratton and Wild Bill Kelso in the streets of L.A. That is, just simply Wild Bill Kelso.
* EatTheEvidence: Hollis P. Wood eats his toy compass when he sees the Japs are interested in it. So they force-feed him prune juice to make him give it up again. Or down.
* EpicFail: Ward does heavy damage to his own house while trying to hit the Japanese sub with the anti-aircraft gun. The next morning, he nails a Christmas wreath to the front door, causing the remains of the house to collapse and fall into the ocean. The door is the only thing left standing on the foundation slab.
* EpicMovie: A rare comedy that can qualify as this.
* FerrisWheelOfDoom
* FiringInTheAirALot:
** Well, Maddox wants to hear Wild Bill Kelso's machine guns. So he fires them while still on ground. Maddox' troops follow suit when Kelso takes off.
** Also in RealLife -- some scenes were so noisy that nobody could hear Spielberg call "cut", so he had crew members shoot off machine guns as a signal that the cameras were no longer rolling.
* FunnyBackgroundEvent: During Wally's speech to the General, Sgt. Tree can be seen holding a mannequin arm close to his chest [[CargoShip and stroking it affectionately.]]
* GeneralRipper: Colonel 'Mad Man' Maddox.
* GetTheeToANunnery: Bizarrely, and probably unintentionally, used. In a deleted scene, Sgt. Tree says he's going to "ream" Sitarski for vanishing during tank maintenance. The common usage of 'ream', to mean 'rebuke', didn't come into American vernacular until 1950. In 1941, however, 'ream' was just coming into usage as a vulgar slang term for anal sex.
* GettingCrapPastTheRadar: Literally so during early TV viewings, and a BilingualBonus to boot! After Hollis Wood swallows a compass desperately needed by the Japanese crew, he's force-fed prune juice to speed things up so the crew can have it back. As Wood sits in the latrine, Captain Kleinschmidt enters and hisses an order in German.
-->'''Kleinschmidt:''' Mach' mit dem Scheiss! Das ist ein Befehl! (Literally saying, "Make with the shit! That's an order!")
* HairTriggerTemper: Sitarski, who destroys half of a civilian's garage for no real reason shortly after being reintroduced.
* HistoricalInJoke
** We learn how the "HOLLYWOODLAND" sign ''really'' lost the last four letters.
** Also the Japanese sailor trying to fit an enormous radio down the submarine hatch.
--->"We've got to figure out how to make these things smaller!"
** Robert Stack plays the actual commander of the U.S. coastal defense so accurately that pictures of Stack in costume have been mistaken for ones of the real Stilwell.
* ItsALongStory: Averted by General Stillwell.
-->"Is this a long story?"\\
"Err...yes, sir."\\
"Then save it."
* ItsQuietTooQuiet: Spoken by some soldiers at a gun installation as they brace for the air raid.
* {{Jerkass}}: 'Stretch' Sitarski.
* LoadsAndLoadsOfCharacters
* MileHighClub: IceQueen Donna Stratton turns into a raging nymphomaniac whenever she gets into the air. Knowing this, HandsomeLech Captain Loomis Birkhead is willing to risk death (he flunked flying school) to get her up in an aircraft. Just as he's finally mastered the plane (and her) they're interrupted in the act by a machine-gunning John Belushi who thinks they're Japanese.
* MobileShrubbery: The director's cut includes a scene where the Japanese sailors disguise themselves in this manner at a Christmas tree lot run by Hollis Wood, who shows up and attempts to cut the "trees" down.
* NakedPeopleAreFunny: It's hard not to laugh at the poor [[MsFanservice Polar Bear Club Woman]] (actually the same actress from the opening of ''Jaws'') who went skinny dipping that morning, as she finds herself clinging to the periscope of the Japanese sub - and then endures the further sexual humiliation of having an excited Japanese sailor see her completely naked before submerging.
* NakedPeopleTrappedOutside: The aforementioned Polar Bear Club Woman who gets caught naked by the Japanese sailor when he pokes his head out of the sub.
* NightSwimEqualsDeath: Parodied. Apparently night swims [[http://www.youtube.com/watch?v=-v93NKIFBBw lead to Japanese submarines]].
* OnlySaneMan: General Stilwell, incidentally [[http://en.wikipedia.org/wiki/Joseph_Stilwell a real person]], played by Robert Stack in the film.
* PantyShot: The Jitterbug tournament alone has quite a number, but the girl in yellow underwear (and yellow is considered '''bad''' in post-Pearl Harbor America) takes the cake.
* RandomEventsPlot
* ReactiveContinuousScream
* ReCut: Spielberg's extended director's cut, done for the film's network TV airing and later released on laserdisc and DVD, includes a half hour of additional footage to pad out the running time to a whopping 146 minutes.
* RooflessRenovation
* RousingSpeech: Sergeant Tree's (Dan Aykroyd) CrowningMomentOfAwesome.
-->'''Sergeant Tree:''' Do you want to see Mickey Mouse blitzkrieging across Poland?
* ShoutOut:
** Spielberg pays homage to his own ''Film/{{Jaws}}'' in the opening, complete with Susan Backlinie (the same actress who played the luckless first victim).
** The gas station where Kelso refuels his plane appeared in Spielberg's ''{{Film/Duel}}''.
* TanksButNoTanks: Averted when they built an accurate full-scale replica of an M3 tank which reportedly caused yet another budget overrun.
* TranslationConvention: Bizarrely inverted; the Japanese sub crew and Captain Von Kleinschmidt each speak their own languages but have no trouble understanding each other.
* TrashTheSet: Just imagine this trope applied to the whole of UsefulNotes/LosAngeles. Another reason it went over budget.
* VehicleVanish: Got the usual ''1941'' treatment. Why have one if you can also have a whole string of Vehicle Vanishes, partly even seen from behind?
* {{Ventriloquism}}: Herbie Kazlminsky, one of the plane-spotters perched atop the Ferris wheel, is accompanied by an obnoxious ventriloquist's dummy.
* VeryLooselyBasedOnATrueStory: [[https://en.wikipedia.org/wiki/Battle_of_Los_Angeles The Battle of Los Angeles.]] Also [[http://en.wikipedia.org/wiki/Bombardment_of_Ellwood the Japanese bombardment on Elmwood.]]
* WhatHappenedToTheMouse:
** Hollis Wood is apparently just left to drown in the middle of the ocean after his heroic escape from the sub. You can in fact glimpse him at the very end of the film, in the aerial view of the destroyed house, along with Captain von Kleinschmidt, who apparently also survived being tossed in the ocean.
** The Polar Bear Club Woman who got caught swimming naked in the opening by the Japanese disappears after that and is not seen again.
* WhosOnFirst:
-->'''[[ToshiroMifune Cmdr. Mitamura]]:''' Where's Hollywood?\\
'''Hollis Wood:''' Right here.
* WorldOfHam: And even then, John Belushi's eccentric, overly patriotic Air Force pilot is a standout. Tellingly, each of the primary and supporting characters is represented in the end credits with a clip of them as their actor's name comes up -- and in most of the clips, they are ''screaming''.