'''''20,000 Leagues Under the Sea''''' is a 1954 film produced by [[Creator/{{Disney}} Walt Disney Pictures]] and directed by Richard Fleischer. It is based on [[Literature/TwentyThousandLeaguesUnderTheSea the novel by Jules Verne]].

The film featured an AllStarCast (Creator/KirkDouglas as Ned Land, Paul Lukas as Professor Pierre Aronnax, Creator/PeterLorre as Conseil, and James Mason as Captain Nemo) and a memorable design for the ''Nautilus'' as well as the memorable giant squid attack. It has become one of Disney's classics.

!!This film contains examples of:

* AlasPoorVillain: [[spoiler: Nemo during the climax, as he stumbles to the window to look at the ocean one last time.]]
* AllInTheEyes: There is a helpful close-up of Nemo's eyes when he's dancing on the thin edge of insanity, as he has the Nautilus ram a ship full of explosives.
* AllAnimalsAreDogs: Esmerelda the sea lion, although it's partly because Ned is deliberately training her to do tricks and/or imitate him.
* AntiVillain: Nemo.
* BadassBeard: Nemo.
* BattleInTheRain: The fight against the giant squid takes place at night during a fierce storm.[[note]] It was originally set during the day on calm seas, but this made the gears operating the squid too obvious; someone (either Creator/WaltDisney or screenwriter Earl Felton depending on the source) suggested setting the battle at night in the rain to hide the mechanism.[[/note]]
* BigBad: [[AntiVillain Captain]] [[WellIntentionedExtremist Nemo]], the man responsible for the ship attacks that get our heroes involved in the first place, imprisons them, and [[spoiler: nearly kills them all when he lets the ''Nautilus'' sink at the end.]]
* BigDamnHeroes / SaveTheVillain: Ned Land arrives in the middle of the giant squid attack, harpoons it right in the eye and saves Captain Nemo from drowning.
* BoisterousBruiser: Ned Land.
* ChronicBackStabbingDisorder: Ned Land, apparently unable to go a scene without attempting to betray Nemo in some small way.
* CoolShip: [[http://www.julesverne.ca/images/imgjvmodels/nautilus_disney_50th-anniv_march_2004_.jpg The design of the]] ''Nautilus'' in the film is considered the iconic look for the submarine. It's influenced many designs of the sub, and even appears on some book covers as well.
* CrouchingMoronHiddenBadass: Ned Land.
* CulturalTranslation: Ned Land's ambiguously American in this version, where in the novel he was unambiguously Canadian.
* DeathByAdaptation: [[spoiler:Captain Nemo, as well as most of his crew.]]
* TheDyingWalk: [[spoiler:In the 1954 film, Nemo gives orders to scuttle the Nautilus, then staggers back to his room, collapses, and opens his viewport so he can look out into his beloved ocean one last time just before he dies.]]
* EverythingsSquishierWithCephalopods: The notorious GiantSquid sequence and the ExoticEntree mentioned below.
* ExoticEntree: Nemo serves a sauté of unborn octopus.
* {{Foil}}: Ned is shown as one to Captain Nemo; Ned's red and white shirt contrasts with Nemo's dark blue uniform, Ned is warm and passionate where Nemo is cold and callous, Ned is obsessed with getting back to land where Nemo wants to be as far as possible from it - Ned is TheEveryman where Nemo is the {{Ubermensch}}.
* ForeignQueasine: The dinner party. Well, just the sperm whale milk pudding.
* GiantSquid
* GrudgingThankYou / EmbarrassingRescue: After Ned saves Nemo from the giant squid. It's the former for Nemo and the latter for Ned, despite the fact that he did the rescuing.
* ILoveNuclearPower: While the original novel used electric power itself as Nemo's AppliedPhlebotinum, the movie had him splitting the atom decades before his time.
* {{Leitmotif}}: Both Ned and Nemo each have their own. Ned's is the song that he sings early in the film, "A Whale of a Tale". Nemo's is a piece called "Deep is the Mighty Ocean", which represents not only the depths of the ocean but also the depths of Nemo's soul. Both themes are used in different styles, depending on the scene of the film.
* MyFistForgivesYou: Ned punches Conseil before admitting friendship. And then, generously, allows Conseil to [[HitMeDammit hit him in return.]]
-->'''Ned''': Go ahead! ''[sticks out chin]''\\
'''Conseil''': Well if you insist. ''[punches Ned in the stomach]''
* NiceJobBreakingItHero: Ned and Conseil try sending [[MessageInABottle messages in bottles]] with the location of Nemo's IslandBase hoping for a rescue; the bottles end up in the hands of Nemo's enemies and they attack the base, just as Nemo was announcing his intentions to share his secrets with the world.
* NoMrBondIExpectYouToDine: The dinner party. See also: ForeignQueasine.
* NotableOriginalMusic: "A Whale of a Tale", a G-Rated BawdySong sung by Kirk Douglas in-character as Ned Land. The song also becomes a {{Leitmotif}} for Ned.
* OldMediaAreEvil: Some subtext to this, when the reporters unabashedly twist Professor Arronax's words.
* OminousPipeOrgan: Nemo plays one. Cut to Ned tuning him out with a homemade banjo.
* ThePiratesWhoDontDoAnything: Not quite, but in the opening scenes of the movie we see 3 ships sunk or crippled on-screen by the Nautilus and it's clear that several other ships have met similar fates in a short amount of time. But once the main characters come on board, Nemo and his men become the Pirates Who Hardly Do Anything, only attacking one ship on-screen over the course of many months - and dialogue supports that this is the only ship attacked in that time period, so we know he didn't go after anything else during any time jumps.
* RaceLift: Captain Nemo, who is definitely Caucasian in this version, as opposed to the AmbiguouslyBrown character in the book.
* {{Steampunk}}: Harper Goff's design of the ''Nautilus'' may well be the TropeCodifier, as was Disney's decision to stage this as a period piece rather than attempt to modernize it (as did the earlier ''War of the Worlds''). An oddity, though, compared to later versions of Steampunk is that the ''Nautilus'' is powered by a nuclear reactor made a century ahead of its time, rather than a steam engine.
* StrawNihilist: Nemo.
* TakingYouWithMe: [[spoiler:After a mortally-wounded Nemo plants the bomb to blow up Vulcania and plans to take the Nautilus to the ocean floor for the last time, his understanding crew confines Ned, Arronax and Conseil to their quarters, intending that they go with him. However, this is averted as Ned rebels and escapes with Arronax and Conseil (and also Nemo's pet sea lion) in the nick of time.]]
* TeamPet: Esmeralda the sea lion, who changes loyalties from Nemo to Ned through the film.
* WhatTheHellHero: Ned Land frequently gives these to Nemo.