With Sin City: A Dame to Kill For hitting theaters in just a few short days, Dimension Films has released two new featurettes that showcase Jessica Alba, who reprises her role as Nancy Callahan, and Joseph Gordon-Levitt, who is new to the franchise as Johnny.While fans of 2005's Sin City will surely remember Nancy, this character has changed drastically, as she has become consumed with avenging the death of Hartigan (Bruce Willis).