<Tr> <Th> Budget </Th> <Td> $14 million </Td> </Tr> <Tr> <Th> Box office </Th> <Td> $13.8 million </Td> </Tr> <P> A United Kingdom is a 2016 British biographical romantic drama film directed by Amma Asante and written by Guy Hibbert, based on the true - life romance between Sir Seretse Khama and his wife Ruth Williams Khama . David Oyelowo and Rosamund Pike portray Seretse and Ruth, respectively . </P> <P> It was screened at the 2016 Toronto International Film Festival, and was the opening film at the 60th London Film Festival, the second year in a row that a British film featured . </P>

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