Game Changers: Throughout Black History Month, our popular series pays tribute to Black cultural visionaries who inspire us to push ahead at a time of profound social change.

As her husband Nelson Mandela served out his sentence in prison, Winnie Madikizela-Mandela took centre stage before the world as the face of the African National Congress. Faced with the extraordinary challenges of a nation under violent transition, and those of a woman in a critical political role, Winnie was unflinching in her pursuit of progress and rights for the people of South Africa - but she remains controversial to this day. For the first time, this incisive documentary considers her life and contribution to the struggle to bring down Apartheid from the inside, with intimate insight from her supporters and detractors, including interviews with Winnie herself.