Moritz married Erika von dem Hagen in 1968 . In 1969 , Moritz de Hadeln and his wife founded the '' Nyon International Documentary Film Festival '' ( today Visions du Réel film festival ) in Switzerland , which he directed until 1979 . He assisted Erika when she took over as head of the festival from 1981 to 1993 . In those 25 years , they made Nyon a unique meeting place for documentary filmmaking while discovering many new talents . From 1972 to 1977 , de Hadeln headed the Locarno International Film Festival , heralding a new era of international recognition for the event . He gave an original profile to the newly introduced outdoor screening on the Piazza Grande and introduced several sidebar events to broaden the festival 's international impact
Visions du Réel
Visions du Réel
Moritz de Hadeln