Cayden Boyd landed his first roles, small television roles and commercials, as young as 6 and 7. He played Tim Robbins' son (Michael Boyle) in Mystic River. In 2004, he was cast in the starring role of Max in the 2005 film The Adventures of Sharkboy and Lavagirl. He played young Warren Worthington III in X-Men: The Last Stand, and he was cast in ...