'''''The Truth About Killer Dinosaurs''''' (2005, also known as ''Dinosaur Face-Off'' in the US) is a two-part TVDocumentary from the {{BBC}}. Presenter Bill Oddie and a bunch of scientists and mechanics use science to deduce who would win in a fight between the two main animal characters of each episode:
* The [[StockDinosaurs classic]] [[AnimalJingoism face-off]] between ''TyrannosaurusRex'' and ''[[StockDinosaurs Triceratops]]''.
* A pack of ''Velociraptor''s and an unspecified genus of ankylosaur (probably ''[[http://en.wikipedia.org/wiki/Pinacosaurus Pinacosaurus]]'').

The program was, in concept and execution, similar to DiscoveryChannel's ''Series/AnimalFaceOff'' and TheHistoryChannel's later ''Series/JurassicFightClub'', but [[EverythingsBetterWithDinosaurs with more dinosaurs]] than the former and more [[FunnyMoments humor]].
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!!The program contains examples of:
* ArtisticLicensePaleontology:
** The creators made the all-too-common mistake of placing ''T. rex'''s eyes into its anorbital fenestra (big opening on the skull in front of the eyes). That is, it's a common mistake for laymen. For professionals, it should be down-right ''embarrassing''.
** The ''T. rex'' head model that Kent Stevens studies has its ear in the wrong spot: the temporal opening.
* AttackItsWeakPoint
* BewareMyStingerTail: The ankylosaur.
* BreakableWeapons: The horns of ''Triceratops'' and ''Velociraptor'''s famed sickle-claw, against hard materials.
* CarriedByTheHost: Bill Oddie is incredibly amusing.
* CurbStompBattle: What would happen if a ''Velociraptor'' actually tried to "fight" an adult ankylosaurid. They end up having two ''Velociraptor'' take on a juvenile ankylosaurid.
* FeatheredFiend: ''Velociraptor''. (And it ''[[ShownTheirWork actually]]'' [[ShownTheirWork has feathers]]!)
** They proudly boast that this is the first feathered raptor on British television!
* HollywoodScience: Mechanical dino experiments and crash-tests, just because.
* InfantImmortality: Averted in the case of the juvenile ankylosaurid.
* MillionToOneChance: As Bill explains, the people that uncovered the famed [[http://upload.wikimedia.org/wikipedia/commons/b/bf/Fightingdinosamnh2.jpg "Fighting Dinosaurs" fossil]] had to be ''extremely'' lucky. Or as he put it, it's comparable to winning the lottery... every time for the rest of one's life.
* RaptorAttack: Subverted with the Velociraptor.
* RogerRabbitEffect: All the instances of {{CGI}} dinosaurs interacting with the host.
* RuleOfFunny: An animatronic ''Tyrannosaurus'' skull tearing a Mini apart. No reason for it, it's just fun to watch.
* ScienceMarchesOn: The show points out how our image of some dinosaurs have changed over time, but this also befalls the show itself:
** The hands of theropod dinosaurs weren't articulated in the way presented, and were locked into one basic position, with palms facing inward instead of down. The same goes for the ceratopsian hands, and the number of claws on their and the ankylosaur's front limbs are also wrong: it should be three claws on the inside with two stubby little toes on the outside, (an arrangement also seen on modern crocodilians.)
** While ''Velociraptor'' is correctly portrayed with feathers, we know it had a lot more than that. It had wings and probably a tail-fan, for instance.
** The Triceratops is depicted with scaly but otherwise uniform hide. Fossilised skin impressions show it had a more rugged appearence, with (possibly keeled) scutes interspersed between smaller, pebbly scales, and rectangular scales along the belly like a crocodile.
* StockDinosaurs: ''T. rex'', ''Triceratops'' and its smaller cousin ''Protoceratops'', and ''Velociraptor''.
* StockFootage: The "raptors in the kitchen" scene from ''Film/JurassicPark'', used to simulate the drastic difference between how the movie portrayed raptors and how they looked in RealLife.
* StockSoundEffects: Dinosaurs sounds. Some have been taken from BBC's previous dino-production, ''WalkingWithDinosaurs''.
* TyrannosaurusRex: The star of the first episode.

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