''Planet of the Dinosaurs'' is a 1978 science fiction film. Set in an unspecified future, the film follows the journey of Captain Lee and his crew after they crash land on an earthlike planet, but millions of years behind in time. Encountering a wide variety of dangerous dinosaurs, the crew decides that its best chance for survival lies on finding higher ground and setting up a defensive perimeter on a higher plateau until their rescuers arrive. They soon encounter a deadly ''Tyrannosaurus rex'' and must figure out a way to defeat the creature and survive on the planet.

The film was a low budget endeavor with no major stars; actors James Whitworth and Max Thayer have the most film experience amongst the actors. Director James K. Shea instructed most of the budget to be spent on the special effects for the film, which included an array of award-winning stop motion dinosaurs, leaving little money for props or even to pay the main actors, [[LatexSpaceSuit all of whom seem to have been chosen based on how sexy they look in tights]]. Modern reviews have generally been negative, [[JustHereForGodzilla although there is agreement that the stop motion dinosaurs were the most notable and enjoyable aspect of the film]].

Was made into a Podcast/RiffTrax in 2009. Not to be confused with the 1992 Italian documentary of the same name.

!!This film provides examples of:

* AlienLunch: "I was just wondering how many other things we're going to have to get used to. Things like eating dinosaurs."
* EverythingsBetterWithDinosaurs
* FanService: Cindy... [[SubvertedTrope who is immediately killed off]], to the dismay of [[Podcast/RiffTrax the riffers]]. And then there's [[WalkingShirtlessScene Chuck]].
** The entire film centers on eye candy [[FemaleGaze for women]] and [[MaleGaze for men]] and [[HoYay for everyone]]. There are numerous scenes with men [[WalkingShirtlessScene shirtless]] (in tights pants that almost look nude) or [[IntimateOpenShirt nearly shirtless]], and the reigning motif is watching [[LatexSpaceSuit latex-clad]] [[ShakingTheRump bootie]] in endless walking scenes always filmed from behind and always filmed on the level of the derriere. In the final scene, the men are [[LoinCloth barely clothed at all]].
* GiantSpider: The movie's most horrifying scene.
* ImmuneToBullets: While much importance is placed on the lasers, and how they can kill almost anything, the dinosaurs of this planet just get really annoyed when shot with one.
* ImpaledWithExtremePrejudice: Harvey. Courtesy of an angry ''[[MamaBear Centrosaurus]]'' who was defending her nest (and who was peeved that lasers were being shot at her).
-->'''Mike Nelson:''' Still. He suffered less than anyone who ever watched the Creator/{{ABC}} show ''{{Series/Dinosaurs}}''.
** The ''Tyrannosaurus'' falls victim to this in the end, impaling itself onto a planted set of stakes while trying to get at the fleeing humans.
* LatexSpaceSuit: Providing constant FanService even in the walking scenes.
* OnlySaneMan: Lee & Jim at different points in the film. Lee, initially, as seeking high ground and shelter would be an smart alternative to fighting alien life forms you know next to nothing about. Once one of those life forms takes a liking to human flesh and begins relentlessly stalking you, however, all bets are off, which is Jim's prerogative in the latter half of the film.
* SacrificialLamb: Cindy.
* SeldomSeenSpecies: ''Centrosaurus'' and ''Polacanthus'' appear in the film.
* ShoutOut: One of the dinosaurs that Captain Lee encounters near the end of the film when he is trying to get the T-Rex's attention is based on the Rhedosaurus, the fictional dinosaur from ''Film/TheBeastFromTwentyThousandFathoms''. Creator/RayHarryhausen visited the studio during production and gave his consent for the creature's cameo appearance. This was made fun of in the Podcast/RiffTrax:
-->'''Mike Nelson:''' (as Rhedosaur is getting killed) Tell...Ray Harryhausen....I love him....
-->'''Kevin Murphy:''' Oh. The Beast From 20,000 Fathoms went out like a punk.
* StockDinosaurs: The film features ''Tyrannosaurus'', ''Brontosaurus'', ''Stegosaurus'', ''Allosaurus'', and ''Ornithomimus''.
* SurprisinglySuddenDeath: Cindy gets chomped by a barely-seen lake monster within ten seconds of diving into the water.
* TheresNoKillLikeOverkill: Jim's plan to finally take out the tyrannosaur involves tricking it into impaling itself with giant spikes. Just in case the resulting massive trauma from ''that'' won't get the job done, said stakes have been coated with poison berry juice. Either way, it works.
* TooDumbToLive: Pretty much everyone...
* TyrannosaurusRex: The villain of the film. He's practically a slasher the way he stalks our heroes.
* WalkingShirtlessScene: '''Chuck'''.
* UpperClassTwit: Harvey seems completely oblivious that he's trapped on a primitive alien world and often tries to use his former position as a company president to get the others to do things for him.