Petrolio presents; in coproduction with Miramonte Film and ZDF in collaboration with Arte in cooperation with RAI Südtirol ; a Hannes Lang film ; directed and visual concept by Hannes Lang ; written by Mareike Wegener, Hannes Lang ; producer, Hannes Lang
Bullfrog Films presents ; a Big World Cinema production for TVE and BBC Worldwide ; Television Trust for the Environment ; executive producer, Jenny Richards ; series producer, Luke Gawin ; series editor, Robert Lamb ; producers, Steven Markovitz, Toni Strasburg ; directed by Toni Strasburg