Forget the ab-flexing, over-stylized, waxed chests of 300. Those pretty boys would last about five seconds in the brutal battles of Centurion, the new action flick from bloodthirsty writer/director Neil Marshall (Doomsday, The Descent). Although the director has rarely shied from bloodshed, Centurion marks a new level of gritty, gory brutality, even for Marshall. Think Saving Private Ryan in the second century.