Sam Worthington enjoys taking on characters who are conflicted.
His latest movie Clash of the Titans, which sits at the top of the U.S. box office, sees him take on the character of Perseus, who is half god and half man.
In an interview with Teen Hollywood the actor said: "Heroic is not fighting. It's actually getting up or if someone else gets knocked down, it's you helping them get up. That's my definition of a hero.
"In this film, I wanted Perseus to be like a troublesome adolescent. He loses his adopted family and he is a boisterous teen.
"He doesn't listen to anybody but he finds a heroic quality through finding another family. He learns to calm down and maybe become an adult.
"A lot of the roles I do are about the duality of people. In Clash Of The Titans, it's half man and half god. In Terminator, it's half man and half robot. In Avatar, half man and half big, blue alien.
"So I'm definitely either screwed up and searching for something in myself or I just like that about characters."
Clash of the Titans is a remake of the 1981 movie, this time with Louis Leterrier in the director's chair.
Clash of the Titans is out now.
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