"I remember a Tarkovsky movie called My Name is Ivan (AKA Ivan’s Childhood), there was a scene in which an officer kisses a girl, but it’s all full of snow and you see no color. It’s a black and white movie, there’s no color, and he had these strips of silver birch trees – snow on the ground, and white on top because of bad weather. And I thought, if this was in color, you’d have exactly the same look – you would have white for the snow, white silver birch trees, and just the people, their clothes are the only things that would stand out."