The Chronicles of Narnia (although we do not learn their surname until "The Voyage of the Dawn Treader"), and eventually become Kings and Queens of Narnia reigning as a tetrarchy. Although introduced in the series as children, the siblings grow up into adults while reigning in Narnia. They go back to being children once they get back to their own world, but feature as adults in "The Horse and His Boy" during their Narnian reign. All four appear in "The Lion, the Witch, and the Wardrobe" and "Prince Caspian"; in the latter, however, Aslan tells Peter and Susan that they will not return, as
The Chronicles of Narnia: Prince Caspian and broke the tension of the night raid. During pre-production, Disney announced a December 14, 2007 release date, but pushed it back to May 16, 2008, because Disney opted to not release it in competition with "", another Walden Media production. Disney also felt the "Harry Potter" films comfortably changed their release dates from (Northern Hemisphere) winters to summers, and "Narnia" could likewise do the same because the film was darker and more like an action film. The world premiere was held at the Ziegfeld Theatre in New York City on May 7, 2008. The British premiere was held at