Falls back mainly on army squad clichés and rote conflicts, along the way delivering a group of protagonists woefully short on personality.

Marshall puts a suspenseful spin on standard horror flick formula.

One of the most gloriously unsubtle and adrenalized extreme shockers since The Evil Dead.

Regardless of the special effects, the plot, characters, and dialogue in the movie are what make it worth watching in my opinion. The relationships seem real, the dialogue is fun, and the actors really pull off great performances.