It's a mild crowd pleaser for people who are exhausted by blockbusters.

I think this is a new genre that they're all sort of working their way through it and haven't got all the kinks worked out yet but it's a genre that works for me.

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.

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