Ava DuVernay was commissioned by the museum to create a film which debuted at the museum's opening on September 24, 2016. This film, "August 28: A Day in the Life of a People" (2016), tells of six significant events in African-American history that happened on the same date, August 28. The 22-minute film stars Lupita Nyong'o, Don Cheadle, Regina King, David Oyelowo, Angela Bassett, Michael Ealy, Gugu Mbatha-Raw, André Holland and Glynn Turman. Events depicted include William IV's royal assent to the UK Slavery Abolition Act in 1833, the 1955 lynching of 14-year-old Emmett Till in Mississippi, the release of Motown's first number-one song, “Please Mr. Postman” by The Marvellettes, Martin Luther King, Jr.'s 1963 "I Have a Dream" speech, the landfall of Hurricane Katrina in 2005 and the night then-senator Barack Obama accepted the Democratic nomination for president at the 2008 Democratic National Convention.