A lot of fun.

If the ambition is to provide two hours of instantly forgettable, popcorn-munching escapism, it succeeds.

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."

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