Goofs for
One Million Years B.C. (1966) More at IMDbPro »

• Factual errors: Humans and dinosaurs were not contemporaneous. There were no dinosaurs one million years ago, having gone extinct 65 million years ago.
  
  
• Factual errors: Ignoring the fact that the Archelon turtle died out tens of millions of years before the first humans evolved, the specimen depicted in this movie is extremely large, more than 10 meters long, in fact. Real Archelon would only grow up to 4.5 meters in length at best, and even those could probably not have had the strength to pull their weight ashore. The gigantic turtle in this film moves rather nimbly on dry land.
  
  
• Factual errors: No Pterosaur (winged reptile) would be able to lift up an adult human. To be able to fly, they had to be extremely light-weight, and even the biggest species weighed only about a hundred kilograms. Aside from this, they were mostly fish-eaters or scavengers, so humans would be completely off-menu.
  
  

• Factual errors: Ceratosaurus was extinct when Triceratops existed, and they wouldn't have been in a situation to fight each other. Also, Ceratosaurus was much smaller than depicted in the film.
  
  

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