I gave it a 7.5 out of 10

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."

This is a must-see and one of the best documentaries - and films - of this year.

One of those movie experiences that is so good it makes you realize you've been grading everything else on a curve.