'I Wasn't Sure If It Was True': John David Washington On The 'BlacKkKlansman' Story

It's 1978 and a black police detective in Colorado Springs, Colo., manages to infiltrate the Ku Klux Klan. He not only gets a membership card straight from Grand Wizard David Duke, but he's also asked to lead a local chapter because he's everything they are looking for — loyal, smart and a true believer.