a portrait by Gero von Boehm and Beatrice Monti della Corte ; an interscience film production for RM Arts and ZDF in association with Arte ; producer, Mechthild Offermanns
produced by Catpics Coproductions Ltd, in coproduction with Amour Fou & Swiss Television ; a film by Michael Hegglin ; producers, Alfi Sinniger, Olivia Oeschger