Heroes vixen Ali Larter wants what Beyoncé Knowles has got (um, an overzealous publicist?) in Obsessed, a thriller going into production this summer. According to Variety, Idris Elba ( American Gangster) will play a handsome asset manager blessed with a bootylicious wife and great career until a temp (played by Larter) begins stalking him. Beyoncé and her father, Matthew, are executive-producing the venture.