Simple and well acted, it has tension enough to knot the stomach.

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."

It’s not bad or unwatchable but despite the amplitude of the spectacle, the end result is underwhelming.

Great story, amazing characters, superb action, enthralling cinematography. Yes, this is something I am glad I spent money on.