Great concept, excellent acting, too long & lame special effects (paging Jim Henson). In the end, Blair Witch meets Cloverfield meets Man Bites Dog–Trollhunter is an extremely derivative mockumentary won’t thrill seasoned movie goers. Because of American’s unfamiliarity with trolls, cultural jokes that would be hilarious to a Norwegian got lost in translation. An American remake using trolls seems like a bad idea.