"En cinquante ans" (1958), an industrial film produced by Gérard De Boe for the Belgian company Union Minière du Haut-Katanga, is featured, and credited.
Dag Hammarskjold was the youngest UN secretary general for seven decades - He was a son of Hjalmar Hammarskjöld, who served as Prime Minister of Sweden from 1914 to 1917.