Sony Pictures on Tuesday said it aims to deliver its new Blu-ray Disc DVD format to U.S. stores on May 23 to coincide with the entry of compatible disc players, a new step in an industry war for control of home movie viewing. Sony Pictures Home Entertainment and MGM Home Entertainment will first release eight Blu-ray titles, followed by another eight in mid-June. The first movie titles include "50 First Dates," "The Fifth Element," "Hitch" and "House of Flying Daggers." Blu-ray is locked in a multibillion-dollar standards war against a rival DVD format known as HD DVD. The technology companies...