Well-rendered CGI visuals ; Excellent addition to the found-footage horror subgenre ; Never takes itself seriously but still manages to engage the audience

A small handful of gaping holes in the story structure ; Extended Scenes bonus feature seems superfluous

There's not a single name in the film you'll recognize, and unless you speak Norwegian, you're not likely to recognize any of the words (the film is presented with English subtitles). And it breaks the language barrier in a big, bad, way, and...

Ingenious effects on a low budget

Tedious when the trolls are not onscreen