How old were the Pevensies and Caspian supposed to be in this movie?
The production stated that the Pevensies were supposed to be about a year and a half older in Prince Caspian than they were in The Lion, the Witch and the Wardrobe. Therefore, Peter is about 16/17, Susan 15, Edmund 14, and Lucy 10. Caspian’s age was derived from the line in the book which describes Peter seeing a boy (referring to Caspian) about his own age. Ben Barnes was cast as Caspian because he looked around the same age as Will Moseley.
