Dinotopia (2002)

Factual error: When Carl first receives 26 at the hatchery, he asks what kind of dinosaur she is. He is told she is a Hadrosaur (duck-billed dinosaur), but when we see her, she is some sort of Ceratopsian (i.e.: Triceratops). She is later referred to as a Chasmosaur (which while not looking like 26, IS a Ceratopsian).

Plot hole: Although the errand bird always insists on the postage and even asks for additional fees for more than twenty words, he never gets any payment from the assigning characters.

Plot hole: The dinotopian island is so large that there are mountain ranges, massive rivers, and whole towns so far apart that it takes days to travel between them. Yet this island is also so close to the mainland that they stumble upon it with a single engine propeller driven airplane. Such a land mass would be just a little hard to miss.

Romana Denison: David, what is it?
David Scott: It's the height. I think I'm having a panic attack.
Romana Denison: Remember you are of the Sky.
David Scott: I am not of the Sky. I don't know who said that. If anything I'm of the Couch.

Marion: Was Goliath a real name?
Karl Scott: He was a giant, a bully. A boy knocked him down with a slingshot. Everyone knows the story of Karl and Goliath.

Karl Scott: It's a skill, honed over a lifetime.
Rosemary: It's time you honed some other skills.