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. .