Has a number of things going for it.

Rating: 6/10 (25 December 2016)

Here's a movie about numbers and three girls with sharp pencils. Hard to believe the space program relied in manual calculations before NASA got their computers up and running.
Excellent performances make this work. There is a nice score and plenty of fifty era Chevys. The number of vintage Chevys polished and lined up in the parking lot is humorous.
At two hours plus, the movie is and feels to long. Seems like about twenty minutes could be cut. It seems it is wandering at times. The movie lacks urgency. A highlight is the passing of chalk.
There is no need to see this in a theater. For the most part, it's a small but important story that will work well on home platforms.