The Lost Worlds of Planet Earth Ortelius hypothesized the idea that land masses may have been connected in the past, Alfred Wegener who hypothesized the idea of a super-continent Pangaea and continental drift despite the prevailing idea of flooded land-bridges at the time, and Bruce C. Heezen and Marie Tharp who discovered the Mid-Atlantic Ridge that supported the theory of plate tectonics. Tyson describes how the landmasses of the earth lay atop the mantle, which moves due to the motion and heat of the earth's outer and inner core. Tyson moves on to explain the asteroid impact that initiated the Cretaceous–Paleogene extinction event, leaving small mammals
Journey to the Center of the Earth (2008 theatrical film) the campaign (including dropping "3D" from the title) when it became clear that the film would be shown in 3-D in far fewer theaters than anticipated. In May 2009, the film premiered as "Journey to the Center of the Earth 4-D" at Stone Mountain Park in Georgia. It also opened in the motion simulator at Dollywood under the same name on June 12, 2009. It also featured in the new 4D Cinema at the Weston Super-Mare Grand Pier in the U.K. It was also shown in Movieworld on the Gold Coast. "Journey to the Center of the Earth" was released