>Look! Up in the sky! It's an online promotion for Superman Returns and Lay's, powered by Google Earth! Masterminded by Tribal DDB/Dallas, the interactive experience leverages Google's popular satellite mapping application to allow players to play the part of the Man of Steel, just as he's set to soar back onto the silver screen on June 28. With Google Earth providing a bird's eye view, players must fly across the United States to hunt for cosmic crystals that have been scattered by an intergalactic explosion, all before Lex Luthor can get his villainous hands on them. The crystals can only be spotted when the player is below certain altitudes (which differ depending on location), and each crystal unlocks a secret instant-win code for a chance to win tons of super prizes.