Blog Number 37 - Rodrigo Santoro to play Xerxes in Frank Miller's '300'

It was recently announced that several actors had been named to be part of the cast of Frank Miller's '300'. Of these which included Dominic West and David Wenham, the only actor mentioned in a specific role is Rodrigo Santoro who will be playing the part of the King of Persia, Xerxes.

Rodgrigo Santoro's part hasn't been confirmed by the studio, therefore there is always the possibility that this part will be played by somone else. Several months ago Sienna Miller was mentioned as portraying Gorgo, the queen of Sparta, however, that role is now being played by Lena Headey.

Has Santoro's role been confirmed or is this idle chatter?