Even knowing that their stories have happy endings, Henson, Monae and Spencer do exemplary work selling you on every moment of their thorny rise to a rightful place in the science history pantheon. No other film out right now has protagonists who are so sympathetic, likable or downright engaging. Henson, in particular, plays somewhat against type while Spencer delivers the kind of reliable work she's been giving for years. Monae, already overlooked in "Moonlight," runs away with most of her scenes. It would be a shame if we never got a new album from her, but it'd be a fair trade if in return, we got more performances such as this one.