* HilariousInHindsight: When introducing ''Spinosaurus'', one of the first things the TalkingHeads say is that the big sail doesn't make sense because it makes the animal heavier. After the 2014 discovery that ''Spinosaurus'' was a short-legged, pelicanesque biped that spent most of its life in water, it turns out this might be the [[FridgeBrilliance exact reason]] why the mystery big sail existed. By making the animal heavier, it helped the ''Spinosaurus'' dive faster. Same reason it had dense bones unlike most dinosaurs.
* SpecialEffectFailure: The CGI is rather unimpressive, especially when compared to National Geographic's ''Series/DinosaursDecoded'', which aired the same day as this documentary.