Lack of good storyline.

It's hard to see any effort in the film. There's no comedy to speak of, no real drama and, worst of all.

There are moments that feel comical, some horrific, and some downright inspiring but the tonal shifts hardly matter as the end results come to a film that's perfect for this time.

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