Although it has its amusing moments, in eneral the plot does not convince.

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."

A great movie, one of the best of this year. There was a bit of confusion at one point in the plot, but nothing serious.

Strong acting helps the film overcome an uncertain premise and create characters that hold our attention absolutely.