Casualties of War is the 1989 film in which Reilly made his film debut. The film, directed by Brian De Palma, is based on the true story of a group of American soldiers who commit a war crime during the Vietnam War. Reilly plays the role of PFC Meserve, a young soldier who is caught up in the events.
The Remarkable Journey of John C. Reilly: An Engaging English Quiz on the Versatile American Actor (Born 1965)