The screening on Fri 12 April was followed by a director Q&A with Talya Tibbon, hosted by CNN's Chief International Correspondent Christiane Amanpour.

The Nabi family have fled Syria and are living in a refugee camp near Thessaloniki in appalling conditions – they need to get out.

Starting out from Aleppo, Syria, they attempt to make their way to Berlin – on foot.

Sky & Ground is a unique and intimate insight into one family’s plight for safety and security. We accompany the Nabi family as they trek through the woods, camp and try to hide from the police.