Andrzej Wajda was a Polish film and theater director who worked during the height of the Cold War. His FBI file primarily addresses a trip to Los Angeles in 1976 (probably for the Academy Awards, where his The Promised Land was nominated for Best Foreign Language Film) in which one member of his group was a subject of FBI monitoring.
New York Times obit: Andrzej Wajda, Towering Auteur of Polish Cinema, Dies at 90