Gwendoline Christie Boards German Drama 'Black Gold' Game of Thrones star Gwendoline Christie, Marton Csokas (The Luminaries) and Merlin Sandmeyer (Die Discounter) have joined the cast of German-language oil town drama Black Gold. Joining them are two-time Academy Award winner Hans Zimmer, who will compose the score alongside violinist Aleksey Igudesman. Christie and Csokas play [...]