Every artistic work is also a document of the time in which it was produced and the people who produced it. The Great White Silence, comprising footage shot during the ill-fated Terra Nova Expedition (1910-1913) was released a little over 10 years after its tragedy unfolded. It was also directed by Herbert Ponting, himself a member of the expedition-- their designated "camera artist". The fact that this features images taken during the expedition before the episode that came to define…