He became famous in his major roles in the 2005 films Little Manhattan and Zathura , the 2006 comedy RV , the 2007 family adventure film Firehouse Dog , the film adaptations of Bridge to Terabithia , Journey to the Center of the Earth and Cirque du Freak : The Vampire 's Assistant . He gained wider exposure with major roles in the 2005 films Little Manhattan and Zathura , the 2006 comedy RV , the 2007 family adventure film Firehouse Dog , and the film adaptations of Bridge to Terabithia , Journey to the Center of the Earth and Cirque du Freak : The Vampire 's Assistant .