This year marks the 50th anniversary of the historic march from Selma to Montgomery. On this special one-hour edition of the Afternoon Shift, we commemorate the Rev. Dr. Martin Luther King Jr. Holiday and 50 years since the definitive march by talking to three Chicagoans and civil rights activists – former Alderman Dorothy Tillman, Professor Timuel Black and Father George Clements — who spent time in Selma and marched across the Edmund Pettus Bridge. We also hear from Ava Duvernay, the director of the movie “Selma” and David Oyelowo, who portrayed Dr. King in the film. (PHOTO: Flickr/tradingcardsnps)