The charisma explosion that is Sam Worthington never really broke through as a major star, though it wasnt for lack of trying. He released Avatar, Terminator: Salvation and Clash Of The Titans in quick succession, though people tended to remember the special effects more than him. Hes man enough to admit when he doesnt do a good job though. He once spoke honesty about the mistakes made on Terminator: Salvation, and he flat out admitted Clash Of The Titans wasnt much use. He apologised to fans in an interview for the sequel, saying I think the first one, we kind of let down some people. I think I can act f***ing act better to be honest. That critique could probably be applied to most of his roles, in fairness. Hopefully its a lesson hell apply to Avatar 2, 3 and 4 if they ever happen.