This movie features characters barely sketched beyond selfish and insufferable but surprisingly, this helps make this film more interesting than it deserves. The script boils down to a notion of self-preservation: do you sacrifice your own good for others or conversely, how much horror will you inflict to survive? To its credit, the film wastes no time building sympathy pretty miserable humans, instead justifiably wrecking their interpersonal relationships even as doom approaches. Now, don't let my praise delude you into thinking this is by any measure a great film, it is paint-by-numbers tween-age horror whose deaths are telegraphed, scares sanitized and much of the dialogue and plot points are cringe-worthy. However, the writers were attempting to interject a slight ethical commentary, and an utterly kick-ass ending elevates what would otherwise be strictly average fare.