sentences:  His 1971 film for CBS News, "The Selling of the Pentagon", an investigation of U.S. Defense Department public relations, won the prestigious Peabody.Davis' "Hearts and Minds", a film about American military action in Vietnam, won the Academy Award for Best Feature Documentary for the year 1974.His subsequent project, the "Middletown" series for PBS, received 10 Emmy nominations and two Emmys.