Colour Bar : The Triumph of Seretse Khama and His Nation, by Susan Williams

The true story of a love which defied family, Apartheid, and empire - the inspiration for the major new feature film A United Kingdom, starring David Oyelowo and Rosamund Pike

London, 1947. He was the heir to an African kingdom. She was a white English insurance clerk. When they met and fell in love, it would change the world.

This is the inspiring true story of Seretse Khama and Ruth Williams, whose marriage sent shockwaves through the establishment, defied an empire - and, finally, triumphed over the prejudices of their age.

'Reading the book, I realised that I had never seen an African love story of this cinematic scope. It spoke to me as an African, as a man, as a romantic' David Oyelowo

'A story of forgiveness and healing ... as relevant today as when the whole drama was being played out' Alexander McCall Smith

'Unmissable ... A love story for the ages ... One of the best films of the year' Daily Mail

'Irresistible storytelling' Guardian

'Genuinely moving ... Fascinating and timely' Time Out