Made over the course of three years and six challenging expeditions, Upstream is a film made entirely from the air, following the upper course of the River Dee in Scotland from its floodplains near Braemar all the way to its source on the summit plateau of the Cairngorm mountains – the highest spring-site of any river in Britain. Created by the writer Robert Macfarlane and the director Rob Petit, narrated by the Oscar-nominated singer Julie Fowlis and with an original score by the Oscar-nominated composer Hauschka.