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 easily one of the freshest, sharpest and most enjoyable films of this year.

The film may be flawed, but its message is not.

The film never slows down or bores, plunging from one harrowing sequence to the next.