Hayley Atwell, Rufus Sewell, Charlotte Rampling, Michael Gambon and Michelle Dockery are set to star in a Sundance Channel and BBC mini-series based on the William Boyd spy novel "Restless" says THR.
Boyd adapted his own novel set during the early days of World War II. The story follows a Russian spy (Atwell) who tries to infiltrate the British Secret Service with the goal of influencing U.S. power brokers and swinging American public opinion in favor of fighting the Nazis.
Rampling will play the same character in 1976, Sewell plays British Secret Service who trains her and becomes her lover, Dockery plays her daughter who eventually discovers her mother's secret.
Edward Hall ("Spooks") will direct the two-parter with Hilary Bevan Jones ("State of Play") producing. Shooting kicks off this summer in South Africa and the UK ahead of an airing at the end of the year.