[[ExactlyWhatItSaysOnTheTin A 1960 Dinosaur movie.]]

Dinosaurs are blasted up from the ocean off of a Caribbean island. Frozen solid, they are brought to shore and revived by lightning. They proceed to run amok, along with a Caveman who was frozen along with them. The islanders are soon cut off from outside help and must survive the night.

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!!Tropes Include:

* ArtisticLicenseGeography: Freezing cold currents in the Caribbean.
* AllCavemenWereNeanderthals: The Caveman is pretty clearly a Neanderthal.
* BigFun: Dumpy. Yes, that is the character's name.
* ABoyAndHisX: Julio pals around with the Brontosaurus and the caveman for quite a bit.
* ContemporaryCaveman: The Caveman, one of the earliest in movies. Easily the funniest parts of the movie are him dealing with things like wax fruit and mirrors.
* DamselInDistress: Betty.
* TheDitz: Jasper.
-->'''Hacker''': "...I didn't know you were an anthropologist."
-->'''Jasper''': "Uh, not a very good one. I mean, I haven't been to church in years."
* DespairEventHorizon: Julio crosses it after the Caveman does his HeroicSacrifice and the apparent death of the Brontosaurus at the teeth of the Rex.
* DumbDinos: The ''T. rex'' is a marauding monster while the ''Brontosaurus'' is more friendly but dim.
* TheEndOrIsIt: The T Rex is knocked back into the cold water at the end of the movie and the movie implies that ''it's still not dead.''
* FishOutOfTemporalWater: The Caveman does not understand modern day life, which makes him one of the most endearing characters in the whole movie.
* GrievousBottleyHarm: Subverted, the bottle breaks in Hacker's hand when he tries to make it deadlier, cutting him badly.
* HumanPopsicle: The Caveman and the Dinosaurs.
* HeroicSacrifice: The Caveman chooses to save his friends by holding up the collapsing mine. He doesn't make it out.
* HollywoodDarkness: All over the place, both with blue lighting in the studio bits and tinted shots for outdoors. A particularly bad example of day-for-night occurs when Bart chases after Julio; although it appears to be filmed at high noon in sunny St. Croix, there's only [[https://66.media.tumblr.com/96b673cd9e49d19f9336b67bb0e93433/tumblr_inline_odxew8jMAI1ttnka6_540.png a slight grey filter]] to indicate it's taking place in the evening -- and in pouring rain, no less.
-->'''[[{{Podcast/Rifftrax}} Kevin Murphy:]]''' Damn nighttime storm, with its dryness and harsh shadows!
* {{Jerkass}}: Hacker.
* MoralityChain: Julio to the Caveman.
* MisplacedWildlife: The Dinosaurs and Caveman are not from that part of the world nor were they contemporaneous.
* MrExposition: The boy, Julio, knows everything about dinosaurs and if he doesn't know something, he asks a question about it, causing others to exposit.
* PrehistoricMonster: The T Rex is a killing machine. Racking an (off screen) body count of at least a dozen.
* QuicksandSucks: up the poor Brontosaurus.
* RealityEnsues: Hacker tries to break a wine bottle to use as an impromptu weapon and ends up slashing his own hand open.
* RipVanWinkle: The Dinosaurs, but especially the Caveman. This trope is also discussed with the Caveman.
* SayMyName: A LOT.
* StockDinosaurs: TyrannosaurusRex and a "Brontosaurus"
* StopMotion: The Dinosaurs, when not done by puppetry.
* TitleDrop: "Sound the Alarm! Dinosaurus!"
* ThoseTwoBadGuys: Hacker's men, Mousey and Jasper.
* TooDumbToLive: Immediately after she nearly pilots her boat into a delayed-action charge, Betty gets huffy at everyone (despite them trying to warn her away) and decides to... dive down into the water, where the last charge just went off almost a minute ago.[[note]]What makes this particularly silly is that Betty has no other lapses of judgment in the movie, and the entire scene is only constructed to establish that, yes, there are dinosaurs frozen in the lagoon.[[/note]]
* UnfortunateNames: "Dumpy". It appears to reference that he's the excavator of the crew and drives the bulldozer, but... still, Dumpy.