Saoirse Ronan plays the lead role with a quiet intensity that echoes the character she played in Peter Jackson's The Lovely Bones. After a chase, Hanna kills Marissa. Written by Focus Features. Cate Blanchett is a mother of sorts — mother to the subversive operation of destroying the father-daughter-killer-tag-team. Focus Features Sony Pictures. As they enter the cell, Hanna kills the double along with some of the guards and escapes.