Lego Star Wars II: The Original Trilogy is a multi-platform action-adventure video game developed by Traveller's Tales and published by LucasArts and TT Games. It was released on September 11, 2006. Part of the Lego Star Wars series, it is based on the Star Wars science fiction media franchise and Lego Group's Star Wars-themed toy line. It follows the events of the Star Wars films Star Wars, The Empire Strikes Back and Return of the Jedi. The game allows players to assume the roles of over 50 Lego versions of characters from the film series; customized characters can also be created. Camera movement was improved from its predecessor—Lego Star Wars: The Video Game; and the concept of "vehicle levels" was explored more thoroughly. The game was revealed at American International Toy Fair 2006. Promotions for the game were set up at chain stores across the United States.