It tells a fascinating story about three women who were essential to NASA’s efforts to send John Glen into space. These mathematicians were brought in for their abilities, but unlike many others around them, they faced discrimination because of both their race and gender. They chose an effective way to deal with this unfairness – by allowing their remarkable skills to speak for themselves. Fortunately, Katherine Johnson (played by Taraji P. Henson) had a supervisor named Al Harrison (Kevin Costner), who was primarily concerned with getting ahead of the Soviets and not overly invested in segregation. His changing perspective eventually developed into genuine admiration, which allowed her to prove she was just as capable, if not superior, to the male colleagues surrounding her – all dressed alike in white shirts and ties. Similarly skilled, Dorothy Vaughan (Octavia Spencer) fought for recognition while overseeing a team responsible for setting up, programming, and testing a new IBM computer located across the hall. The third member of this group was Mary Jackson (Janelle Monáe), whose expertise would be vital to ensuring the heat shield on the module returning the astronaut (Glen Powell) safely to Earth functioned correctly. Director Theodore Melfi weaves these three storylines together skillfully, maintaining viewer interest and engaging us in both the challenges these women faced and the unfolding scientific advancements. Henson and Spencer deliver believable, restrained performances, and while Monáe has less screen time, all three portrayals are impactful and informative. I wasn’t familiar with these individuals prior to seeing this film – I'm happy that I now know their story.

Source on TMDB