History Film / TwentyThousandLeaguesUnderTheSea

* OnlySaneMan: Conseil and Ned see Nemo for what he is and actively looking for ways to escape, while Arronax is too awestruck by the Nautilus and Nemo's scientific discoveries.

* GiantSquid: One [[TentacledTerror grabs onto the ship]], and the crew has to surface in the middle of a storm in order to drive it off.

* {{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 ''Film/{{War of the Worlds|1953}}''). 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.

* {{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.

* JerkWithAHeartOfGold: Ned can be crass, insulting, self-centered, and [[KleptomaniacHero prone to stealing any treasure he can find]], but he does befriend Conseil, expresses anger over the murder of fellow sailors, and saves Nemo from the giant squid.

* BadassBeard: Nemo sports one and is undeniably a highly intelligent and dangerous man.

* FictionalCountry: The unnamed nation that imprisoned Nemo and killed his family since he refused to give them his scientific secrets. Their warships don't even carry flags. [[spoiler:In the book it's the United Kingdom and the warships have recognizable flags.]]

* FictionalCountry: The unnamed nation that imprisoned Nemo and killed his family since he refused to give them his scientific secrets. Their warships don't even carry flags.

* SaveTheVillain: Ned pulls a BigDamnHeroes moment to save Nemo from a giant squid.

* AFatherToHisMen: While distant, Nemo obviously cares for his men, from officiating a funeral for a man killed during a warship attack to hin getting snared by the giant squid trying to rescue a man who fell overboard. In return, his men are unquestioningly loyal, and willingly follow any order Nemo gives [[spoiler:even if it's to sink the ''Nautilus'' and die with him.]]

* AdaptationalHeroism: The movie makes Nemo rather more sympathetic, cutting out a number of his KickTheDog moments from the novel, revealing his true goal (sinking enemy ships) much earlier and giving him the chance to defend his actions with a passionate speech, making his nameless faceless enemy seem much more like an avatar of the worst parts of human nature itself, and his last words (seen in the page quote) are rather hopeful for humanity as a whole. That said. . .

%%* 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]]

%%* BoisterousBruiser: Ned Land.
* CanonForeigner: Esmeralda, the sea lion, who doesn't exist in the book.

* DeathByAdaptation: [[spoiler:Captain Nemo, as well as most of his crew.]]

''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 Creator/JulesVerne.

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

* ChronicBackStabbingDisorder: Ned Land, apparently unable to go a scene without attempting to betray Nemo in some small way. [[spoiler: This nearly gets him, Arronax, and Conseil killed in the end.]]

* YouHaveOutlivedYourUsefulness: Not that Nemo saw Ned Land as particularly useful, nor did Ned go out of his way to prove otherwise, but after Ned's ChronicBackstabbingDisorder nearly gets the Nautilus invaded by cannibals, Nemo finally has enough of him and confines Ned to the brig with a thinly veiled implication that he will be permanently dealt with soon after.

* AntiVillain: Nemo.

* BadassBeard: Nemo.

* BoisterousBruiser: Ned Land.

* CrouchingMoronHiddenBadass: Ned Land.

* StrawNihilist: Nemo.

* 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.

* OhCrap: When Ned sees the impaled skulls and realizes the jungle is NOT friendly. He immediately turns around and moves his ass back to Conseil and the Nautilus.

* AdaptationalHeroism: The movie makes Nemo rather more sympathetic, cutting out a number of his KickTheDog moments from the novel, making his nameless faceless enemy seem much more like an avatar of the worst parts of human nature itself, and his last words (seen in the page quote) are rather hopeful for humanity as a whole. That said. . .

* ForeignQueasine: The dinner party. Well, just the sperm whale milk cream.

* YouHaveOutlivedYourUsefulness: Not that Nemo saw Ned Land as particularly useful, nor did Ned go out of his to make himself so, but Ned's ChronicBackstabbingDisorder nearly gets the Nautilus invaded by cannibals, Nemo finally has enough of him and confines Ned to the brig with a thinly veiled implication that he will be permanently dealt with soon after.

* ChekovsGun: The bottled messages that Ned throws out with the triangulated coordinates to Nemo's hidden IslandBase lead to Nemo's enemies invading it, which forces Nemo to [[spoiler: detonate it out of fear that his secrets will be used for war. This also results in Nemo being fatally wounded and, due to his crew's SuicidePact, causes their demise as well.]]