Leonidis & His Queen in 300 Prequel?

Producer Bernie Goldmann recently spoke with movies.com about the upcoming 300 prequel, 300: Battle For Artemisia.  He spoke about weather Gerad Butler and Lena Heady, who played King Leonidas and Queen Gorgo respectively, would be in the film.    

When asked he said the following: “It’s a different story," he said. "[However] there’s a small part for Lena [Headey]. There’s a small part for Gerry [Butler].”

The film is based on Frank Miller's upcoming graphic novel prequel to 300, and is believed to take place 10 years or so before the first one, as Xerces rises to power.