The 32-year-old 'Casino Royale' beauty plays feisty warrior Artemisia in the follow-up to 2007's hit movie '300', reported Total Film magazine.
"She has some balls, that's for sure. It's my first action movie. Artemisia's like an Amazon. She's a very, very strong woman," Green said.
'300: Rise of an Empire' sees Rodrigo Santoro reprise his role as the powerful Xerxes, while little-known filmmaker Noam Murro replaces '300' director Zack Snyder in the director's chair.