Letters, diaries, drawings and official documents tell the wartime story of Franciszka and Stefan Themerson, artists, writers and film-makers. In 1938 Franciszka and Stefan Themerson moved from Warsaw to Paris. Who were they? They made avant-garde films in Poland in the 1930s. She was a painter, he was a writer. Why did they go to Paris? Because Paris was the centre of the art world, and as Stefan said: if one wrote, painted or made films,...