Scrat's Continental Crack-up is a computer-animated 2-part short film starring Scrat. It is the 4th short film in the Ice Age franchise and serves as a teaser for Ice Age: Continental Drift. It was released in 3D with the Jack Black movie Gulliver's Travels on December 25th, 2010, and released on iTunes Trailers on January 6th, 2011. The short was released in 3D with the Blue Sky Studios movie Rio on April 15th, 2011. It was also released on the Rio Blu-ray as a preview on August 2nd, 2011.