Who is Sam Worthington and why is he billed on the Terminator poster when Bryce Dallas Howard isn't?

Sam Worthing is an actor who played an important role in Terminator : Salvation. In this film he does the role of a man on death row for murder who donated his body to Cyberdyne Systems for experimentation. In my opinion he plays a very important role in the movie.So no wonder of him being placed in the poster.

Also if you take a look at the imdb.com/title/tt0438488/ IMDB page you can see Sam Worthing's name appears before Bryce Dallas Howard's which means he is nearly equal to the hero of the movie.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.