I really need someone to answer this question!?!? Its about Eragon and Narnia!?

Does the same guy who played Peter Pevensi in The movie , Choronicles Of Narnia play Eragon in the movie Eragon? I really want to know is he, if not, than who plays eragon? whoeveranswers this question, thank you, even if it isnt correct, thanks for trying. and i would greatly appreciate if you dont use any fowl language or rude comments when and if you do.