This isn’t exploitation; this is a look at how things may have been with Harris and Klebold, and how something like this could easily happen again.

Though comparisons to "The Blair Witch Project" are inevitable, the impeccable first-person camera technique not only makes sense dramatically, but also facilitates a complex and queasily ambiguous relationship between the conspirators and the audience.

Consistently riveting. Anything but sensationalistic, pic powerfully illuminates the banality of evil, as realistically ordinary kids (played brilliantly by non-professional high schoolers) prepare to wreak havoc.

Will chill you to your core.

Cocchio's film isn't as poetic as Gus Van Sant's hauntingly beautiful (far more expensive) "Elephant," but it has a power and immediacy that makes it much more worthwhile than "Home Room."