the co-star is naomi harris who played miss moneypenny in "sky fall." global icon. but as a passion that and often controversial add vocate for blk rights. >> you play a figure who is controversial. >> good people do very bad things and bad people do very good things. it was my job to find the complexitien ay ein all of that. >> the people are angry. >> we are all angry. i am angry. you are angry. >> what's ben hen her reaction the movie? >> in tears at the end of the screening in south africa. she said it was too real for her. she felt like it wasn't acting up on the screen that we were really re-enacting it. we couldn't ask for any higher honor that that, really. >> guilty or not guilty? >> mandela's epic struggle to end apartheid in south africa, first gained global attention while he was incarcerated. living in a cell, 18 of the 27 years he was in prison. a place he visited preparing for the role. >> i spent a night on the island. took the opportunity. spent one night. >> why? i needed context. i needed perspective. you and i would never know what i