Curvy Salma Hayek strikes gold in a gorgeous metallic corset dressBy Jade WatkinsShe has the killer curves that many women envy.And Salma Hayek showed them off sensationally last night, as she slipped herself into a form-fitting dress, complete with metallic corset, for the premiere of Americano at the Toronto Film Festival.The actress, who just recently turned 45 this month, was glowing from