DVD: Troll Hunter, For retail & rental (Momentum) This hit Norwegian monster movie is presented as a "found footage" documentary in the Blair Witch/ Cloverfield tradition, but it has enough dry comedy to bear comparison with This is Spinal Tap, too. Its weary hero does indeed hunt trolls, but as a disgruntled government employee he spends as much time grumbling about paperwork and overtime pay as he does battling tree-sized monsters. Tremendous fun.