Stone won an Academy Award for Best Adapted Screenplay as writer of Midnight Express (1978), and wrote the acclaimed gangster movie Scarface (1983). Stone achieved prominence as writer and director of the war drama Platoon (1986), which won Academy Awards for Best Director and Best Picture. Platoon was the first in a trilogy of films based on the Vietnam War, in which Stone served as an infantry soldier. He continued the series with Born on the Fourth of July (1989)—for which Stone won his second Best Director Oscar—and Heaven & Earth (1993). Stone's other notable works include the Salvadoran Civil War-based drama Salvador (1986); the financial drama Wall Street (1987) and its sequel Money Never Sleeps (2010); the Jim Morrison biographical film The Doors (1991); the satirical black comedy crime film Natural Born Killers (1994); and a trilogy of films based on the American Presidency—JFK (1991), Nixon (1995) and W. (2008). His latest film is Snowden (2016).