David Oyelowo, Gugu Mbatha-Raw, Jessica Plummer and Ben Hardy star in the four-part thriller.
The BBC drama about MI5 spies was one of the most popular and enduring dramas of the 00s.
In several recent sci-fi/fantasy films, Black women and girls are at the forefront as they try to defeat otherworldly obstacles.
"I've started singing every song whenever a line makes reference to one."
The six-part adaptation is the latest take on the famous story.
The drama starts filming next month.
The Hollywood great criticised the casting of British actors in U.S. films like "Selma" and "Get Out".
In 1948, a black law student named Seretse Khama, who was also heir to the throne in Botswana, married a white English clerk
When I first saw the trailer to A United Kingdom, I felt a prickle on my skin, a gust of affiliation to this story promising to tell the triumph of an interracial relationship. I was bewitched by this film that showed a black man and a white woman in love, something of a given for me growing up in a mixed-race household...