Complex sentence: Older films and literature generally depict dinosaurs as sluggish, unintelligent, lizard-like creatures; more recently, the portrayal of dinosaurs in works intended for popular consumption has tended to reflect a more nuanced, modern scientific understanding of the animals.
Split into simpler sentences: Older films and literature generally depict dinosaurs as sluggish, unintelligent, lizard-like creatures. More recently, the portrayal of dinosaurs in works intended for popular consumption has tended to reflect a more nuanced, modern scientific understanding of the animals.