The biggest problem with this movie is it’s a little better than you think it might be, which somehow makes it worse. As in, it takes itself a bit too seriously, which makes most of the movie feel kind of dull.

While it is a pity that the story wasn't told with more visual finesse, this is trivial compared to our real-world problems. It takes a good movie to put that into perspective.

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

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