''The Truth About Killer Dinosaurs'' (2005, also known as ''Dinosaur Face-Off'' in the US) is a two-part TVDocumentary from Creator/TheBBC. 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 Creator/DiscoveryChannel's ''Series/AnimalFaceOff'' and Creator/TheHistoryChannel's later ''Series/JurassicFightClub'', but [[EverythingsBetterWithDinosaurs with more dinosaurs]] than the former and more [[FunnyMoments humor]].
!!The program contains examples of:
* AnimalJingoism: Episode 1 is all about the famous rivalry between ''T. rex'' and ''Triceratops''. The animosity between ''Velociraptor'' and ''Protoceratops'' is also addressed in Episode 2.
* 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.
** The "''Triceratops'' crash test". The scientists drive a replica of a ''Triceratops'' skull into a porous aluminum wall (representing ''T. rex''), and when the skull breaks to pieces, they conclude that the animal was just as vulnerable. Two things wrong with the experiment: both of the participants. A real-life ''Triceratops'' head would naturally have all sorts of strengthening tissue supporting the skull, and ''T. rex''... clearly wasn't a large, square-shaped metal surface.
* 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.
* SeldomSeenSpecies: ''Tarbosaurus'' appears in Episode 2 facing off with the ankylosaur, who also qualifies as it's based on an Asian genus like ''Pinacosaurus''.
* StockDinosaurs: ''T. rex'', ''Triceratops'' and its smaller cousin ''Protoceratops'', and ''Velociraptor''. Subverted with the ankylosaur, which while not identified is not the iconic ''Ankylosaurus''.
* 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, ''Series/WalkingWithDinosaurs''.
* TyrannosaurusRex: The star of the first episode.