Save your money for something good and enjoyable

It was OK. I don't see why everyone loves it so much. It wasn't very smart or deep or well-directed.

Tells a fascinating and unsettling true story, and does so well, without pretending to have all the answers.

A film with more than the usual spoiler issues. Talking about it in any detail feels akin to handing you a gift-wrapped present and saying, "I hope you like it -- It's a thriller about a diabolical secret experiment."