written and presented by Basil Davidson ; series producer, John Percival ; director, Andrew Harries ; a Mitchell Beazley Television, Monarda Arts, Channel Four co-production
First Hand Films ; directed by Dmitry Bogolubov ; written by Dmitry Bogolubov, Anna Shishova-Bogolubova ; produced by Vlad Ketkovich [and 3 others] ; a film produced by Ethnofund [and 3 others] in coproduction with ZDF in association with Arte
director, Arthur Mac Caig ; commentaire écrit par Stéphanie Gillet, Arthur Mac Caig ; producteur délégué, Philippe d'Ovidio ; co-production Dathanna-Frontera Films