Stamps of approval

Four legendary "Cowboys of the Silver Screen" -- Gene Autry, Roy Rogers, Tom Mix and William S. Hart -- are among the luminaries who'll be honored on U.S. postage stamps in 2010. Release date: April 17. Also due on commemorative stamps next year: The legendary Katharine Hepburn (whose stamp portrait is a publicity still from Woman of the Year) and pioneer African-American filmmaker Oscar Micheaux.