Over at Bleeding Cool they got a taste at Comic-Con from an unknown source of what they think is a sequence from the film, so possible spoiler ahead:
“But I have been told details of one specific scene in particular, in which Superman breaks apart a building and uses the building itself as a weapon in some kind of ‘super martial art’ fashion. “Girders as throwing stars” was the specific example I was given.”
Again, treat this as a rumor for now but it does sound different from the 2006 film Superman Returns.
Henry Cavill plays Superman in the June 14, 2013 release. The film also stars Amy Adams as Daily Planet journalist Lois Lane, and Laurence Fishburne as her editor-in-chief, Perry White. Starring as Clark Kent’s adoptive parents, Martha and Jonathan Kent, are Diane Lane and Kevin Costner. Squaring off against the superhero are two other surviving Kryptonians, the villainous General Zod, played by Michael Shannon, and Faora, Zod’s evil partner, played by Antje Traue. Also from Superman’s native Krypton are Lara Lor-Van, Superman’s mother, played by Ayelet Zurer, and Superman’s father, Jor-El, portrayed by Russell Crowe. Rounding out the cast are Harry Lennix as U.S. military man General Swanwick, as well as Christopher Meloni as Colonel Hardy.