Impossible Pictures for BBC ; historical consultant & co-writer, Alan Ereira ; executive producer for BBC, Adam Kemp ; executive producer, Jasper James ; produced & directed by Nick Murphy
writers/directors, Marion Gruner, Christopher Sumpton ; producers, Christopher Sumpton, Robin Benger, Marion Gruner ; produced in association with Arte France, Unité Découverte et Connaissance ; and in association with Canadian Broadcasting Corporation ; Cogent Benger Productions Inc