I haven't seen the movie yet, but look forward to seeing how the screenplay pulls the story of the three protagonists together. The book was enlightening to me, but not as compelling as it could have been. I marked about 25 pages for moving passages, but I don't have the fortitude right now to go through them all.
I'll just say that it's a telling story of racism and sexism in the 1940s through the presence, even in a field, math, where things are, in fact, black and white. I'm interested in the story in conversation with Lily Koppel's Astronaut Wives Club. They're both biohistories told about women in the space race--the public and private faces of it.