MANHATTAN - The "Men in Black" stars hit the black carpet for a star-studded Manhattan premiere last night.Will Smith told News 12 Long Island's Elisa DiStefano that he's excited to reprise his role as Agent J. Smith and the rest of the cast shot the 3-D "Men in Black 3" movie all over New York and here on Long Island at Robert Moses Beach.The long-awaited sequel opens at midnight.