Animals United is a 2010 3D computer-animated adventure comedy film directed and produced by Reinhard Klooss and Holger Tappe. It was released on October 7, 2010, in Germany. The film stars Ralf Schmitz and Thomas Fritsch as a meerkat named Billy and a lion named Socrates in the African Okavango Delta, who go on an epic quest to discover why their river has unexpectedly dried up. It is based on the 1949 book of the same name by Erich Kästner. This is the second adaptation as the first adaptation was a 2D-animated film, which was also the first German animated feature film to be in color that was released in 1969. The screenplay for the film was written by Oliver Huzly and Reinhard Kloos. An English dub version for Animals United stars an ensemble cast, including James Corden, Stephen Fry and Andy Serkis.