Continental drift is created at spreading centers, and this, along with subduction, drives the system of plates in a chaotic manner, resulting in continuous orogeny and areas of isostatic imbalance. The theory of plate tectonics explains all this, including the movement of the continents, better than Wegener's theory. Hans Stille and Leopold Kober opposed the idea of continental drift and worked on a "fixist" geosyncline model with Earth contraction playing a key role in the formation of orogens. Other geologists who opposed continental drift were Bailey Willis, Charles Schuchert, Rollin Chamberlin and Walther Bucher. In 1939 an international geological conference was held
Ice Age: Continental Drift Dinklage voicing new characters. The plot focuses on Scrat sending Manny, Sid, and Diego adrift on an iceberg with Sid's Granny and causing them to face a gang of pirates led by Captain Gutt. "Ice Age: Continental Drift" was released in the United States on July 13, 2012. This was the first "Ice Age" film to be presented in the 2.39:1 aspect ratio. The film grossed $877 million worldwide, marking it the fifth highest-grossing film of 2012 and the highest-grossing animated film of 2012. A sequel, titled "", was released on July 22, 2016. While Scrat inadvertently causes the break