William Oliver Stone (born September 15, 1946) is an American film director, screenwriter, and producer. Stone came to public prominence between the mid-1980s and the early 1990s for writing and directing a series of films about the Vietnam War, in which he had participated as an infantry soldier. Many of Stone's films primarily focus on controversial American political issues during the late 20th century, and as such that they were considered dangerous at the times of their releases.