Eragon is a third-person video game released for the Xbox 360, PlayStation 2, Xbox, and Microsoft Windows, developed by Stormfront Studios. Also released are unique versions of Eragon for the Game Boy Advance, Nintendo DS, PSP, and mobile phone handheld gaming systems, primarily developed by Amaze Entertainment.
The game is based upon the Eragon film, which is in turn based on the book Eragon, by Christopher Paolini. The games were released on November 14, 2006 in the United States of America, on November 24, 2006 in the European Union and on November 23, 2006 in Australia in order to coincide with the release of the film. In the game the player takes on the role of the main protagonist from the book and film, Eragon, and occasionally controls his dragon Saphira.
Source: Wikipedia, "Eragon (video game)", available under the CC-BY-SA License.