Intense, gripping, stylish and poignant

It's fun, it's light, [but] it has a hard time when its tries to get heavy.

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.