The one-off drama, Mrs Mandela, will premiere on BBC4 and air on BBC2 in the same week later this year.
Shot on location in Soweto, the film focuses on the relationship between Winnie and her Nelson Mandela, from their brief courtship in the 1950s to Nelson's release from prison in 1990.
Blood Diamond actor David Harewood will play Nelson Mandela, with Blackpool actor David Morrissey taking on the role of notorious police interrogator Theunis Swanepoel.
The film, made by independent production company Diverse, was written and directed by Michael Samuels, who directed BBC4 drama The Curse Of Steptoe about the troubled life of the stars of sitcom Steptoe and Son.
Described by the corporation as "a love story, a triumph and a tragedy" the film will chart Winnie Mandela's "progression from innocent country girl to politicised fighter against apartheid, from adoring wife to revolutionary firebrand".
The film will depict the succession of scandals which led to the woman once nicknamed the "Mother of the Nation" being called "Mugger of the Nation". ...<cont>
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