Dinosaurs thought to be extinct for millions of years are actually alive and well in the second trailer for Walking with Dinosaurs: The Movie. Directors Neil Nightingale and Barry Cook give viewers a realistic portrayal of what the Earth was like when dinosaurs roamed the planet. Take a look at the latest footage for this pre-historic 3D adventure, in theaters December 20.

For the first time in movie history, audiences will truly see and feel what it was like when dinosaurs ruled the Earth. Walking with Dinosaurs 3D is the ultimate immersive, big-screen, 3-D experience. Recent discoveries and a breakthrough in technology will introduce new and unique dinosaurs that are more real than ever before and put moviegoers in the middle of a thrilling prehistoric adventure, where an underdog dinosaur triumphs against all odds to become a hero for the ages.