The U.S. Postal Service has issued a stamp commemorating the Beatles and their 1968 film and album "Yellow Submarine." The stamp is part of a series focusing on the 1960s, which also includes a stamp honoring the original Woodstock festival, according to a statement from the Postal Service. "It's lovely for the 'Yellow Submarine' to become a postage stamp," ex-Beatle Paul McCartney said in a statement. The movie "Yellow Submarine" is being re-released on video and DVD Sept. 14, along with a revamped soundtrack.