Hollywood actress Sharon Stone has praised the talented extras in her latest movie BOBBY - and wishes there was an accolade equivalent of an Academy Award for the budding stars. The Basic Instinct beauty appears alongside William H Macy, Heather Graham, Christian Slater and Demi Moore in the Emilio Estevez-directed movie about the 1968 assassination of US Senator ROBERT F. KENNEDY. Stone says, "I wish there was an Oscar for extras. I'm not even joking because the performances they gave are so compelling and so rich and so deep."