* The career of the late Raoul Walsh reminds us how young the movies really are. He was there almost from the beginning, acting in one-reelers less than two decades after they were invented, and playing John Wilkes Booth in "Birth of a Nation" in 1915. His 51-year directing career began with "Life of Villa" in 1912. Between then and 1963 he gave us such memorable treats as "White Heat," "Captain Horatio Hornblower," and "They Drive by Night." Though action was his forte, he moved to drama, comedy, and song when the occasion required. His pictures will live as long as Hollywood is remembe red.