From Wikipedia:
Trollhunter (Norwegian: Trolljegeren, known in the UK as Troll Hunter and in Canada as The Troll Hunter) is a 2010 Norwegian dark fantasy film, made in the form of a "found footage" mockumentary. It is written and directed by André Øvredal, and features a mixed cast of relatively unknown actors and well-known Norwegian comedians, including Otto Jespersen.
A group of university college students, Thomas (Glenn Erland Tosterud), Johanna (Johanna Mørck), and their cameraman Kalle (Tomas Alf Larsen) set out to make a documentary about a suspected bear poacher, Hans (Otto Jespersen). At the site of an illegally slain bear, they interview local hunters, who comment that the bear tracks look odd, as well as Finn Haugen (Hans Morten Hansen), head of the Norwegian Wildlife Board. Finn dismisses the idea that the bear tracks could have been faked. Like true paparazzi, the students follow Hans, who tells them to go away. As they follow him into a forest, they see mysterious flashing lights and hear roars. Hans comes running back screaming "Troll!" Thomas is attacked and bitten by a large animal. They escape in Hans’ Land Rover, and discover their own vehicle turned over with the tires mysteriously missing. Hans admits that he does not hunt bears, but trolls. Though sceptical, the students ask if they can join Hans and film his hunt. Hans consents.
The next day Hans makes them disguise themselves with troll 'scent', and checks if any of them believe in God or Jesus, because a troll can smell a Christian man's blood. Hans wields a “flash gun,” a weapon that emits powerful UV-rays to simulate sunlight and turn trolls to stone, though he comments that sometimes the trolls “just explode.” The students are stunned when Hans flushes out a giant three-headed troll. As Hans destroys the troll, Finn of the Troll Security Agency arrives with a team to deposit a bear carcass. Finn then plants fake tracks. Finn angrily tells the students that they will not be allowed to keep their tapes.
In a series of interviews Hans reveals that he works to keep trolls a secret and to kill any that come near populated areas. The trolls are acting aggressively and have begun to leave their territories more often than usual, and Hans must get a troll blood sample to try to determine why.
The students accompany Hans on another hunt using live goats on a bridge as bait. Hans takes the blood to a veterinarian who works for the TSS, but finds that it will take several days before any results can be found. Investigating a farm where a number of trees have been inexplicably uprooted, Hans and the film crew find troll tracks leading into an abandoned mine, lair of a pack of Mountain King trolls. The trolls return unexpectedly, and the group is trapped inside. Kalle confesses that he is a Christian. The trolls catch his scent and kill him, while the others escape.
The replacement camerawoman is a Muslim; Hans is uncertain about how trolls will react to that. Finn demands that Hans head north to troll territory to get the problem under control. The group finds signs of a Jotnar, a giant mountain troll, 200 feet tall. Thomas falls ill, and they learn that the troll blood sample came back positive for rabies. Thomas has been infected by the bite received several days earlier.
Hans attempts to kill the mega-troll, launching a rocket-like projectile that transforms the troll to stone. He directs the others to find the highway. Finn and his government agents arrive to confiscate the students’ tapes. Thomas flees with the camera and is seen collapsing at the side of a road when the tape cuts out. Just before the cut to black a truck is seen stopping next to the camera. Presumably the driver is the person who "found the footage". An epilogue tells the audience that none of the students were heard from again. The film ends cleverly with a genuine edited news clip of the Norwegian Prime minister Jens Stoltenberg inadvertently admitting to the existence of trolls, though the press fails to take notice.
Rated 15 certificate and to to be supplied to persons below that age.
