Dean’s A-List Interviews from “Hidden Figures:” Taraji P. Henson, Octavia Spencer, Janelle Monáe, Kevin Costner & Jim Parsons

Actresses from left, Taraji P. Henson, Octavia Spencer, and Janelle Monae answer questions after the screening of the movie 'Hidden Figures,' Thursday, Dec. 15, 2016, in the South Court Auditorium in the Eisenhower Executive Office Building on the White House complex in Washington. The three actresses, who all are cast members in the movie, where on a panel to discuss the movie during a special screening at the White House. (AP Photo/Pablo Martinez Monsivais)

Actresses from left, Taraji P. Henson, Octavia Spencer, and Janelle Monae answer questions after the screening of the movie 'Hidden Figures,' Thursday, Dec. 15, 2016, in the South Court Auditorium in the Eisenhower Executive Office Building on the White House complex in Washington. The three actresses, who all are cast members in the movie, where on a panel to discuss the movie during a special screening at the White House. (AP Photo/Pablo Martinez Monsivais)

Dean Richards shares his conversations with the cast of the movie Hidden Figures, highlighting the true, untold story behind NASA’s smartest minds,  that helped launch John Glenn into orbit and advance in the Space Race.