The Tyrannosaurus rex near the end has a number of anatomical faults:
The head is wrong shape.
There are three claws on the hand (three fingers like an Allosaurus or Giganotosaurus); Tyrannosaurus had two.
It did not have pronated hands.
It is standing upright, which has been determined wrong.
Its tail is dragging on the ground.
Tyrannosaurs had feathers along their backs, necks and heads. This however was not definitively proven until the 21st century so the mistake is understandable.