Kennedy Space Center Director Bob Cabana (center pointing to the left) provides a tour for cast and crew members of the upcoming motion picture "Hidden Figures." The group is walking thought the transfer aisle of the Vehicle Assembly Building. The movie is based on the book of the same title, by Margot Lee Shetterly. It chronicles the lives of Katherine Johnson, Dorothy Vaughan and Mary Jackson, three African-American women who worked for NASA as human "computers.” Their mathematical calculations were crucial to the success of Project Mercury missions including John Glenn’s orbital flight aboard Friendship 7 in 1962. The film is due in theaters in January 2017.