Sea Rex 3D: Journey to a Prehistoric World, also known simply tilted as Sea Rex or Sea Rex: the beginning of Sea Monsters, is a 2010 3D film directed by Ronan Chapalain and which was released to IMAX theaters in 2010. It was released on Blu-ray and Blu-ray 3D in November 2010. based in the same universe of National Geographic's 2007 film Sea Monsters: A Prehistoric Adventure, it is the second film of the sea monsters film series and a entry of the land before time universe, and the Prequel to the first film, which the first two films are both set in a Parallel universe.