The international version of the Hidden Figures trailer focuses less on just the three women at its center—Katherine Johnson (Taraji P. Henson), Dorothy Vaughan (Octavia Spencer) and Mary Jackson (Janelle Monae)—and more on the way other people react to them.
Source: io9 – Taraji P. Henson, Octavia Spencer, and Janelle Monáe Work the Numbers in the New Hidden Figures Trailer