This Day in Halloween: Norwegian fantasy horror mockumentary "Trollhunter" premieres as the Sundance Film Festival in 2011. / Illustration by Sam Chavez
Trollhunter premieres as the Sundance Film Festival in 2011. The Norwegian fantasy horror mockumentary even includes a cleverly edited clip of Norwegian Prime minister Jens Stoltenberg admitting to the existence of trolls. It opens in limited release in the U.S. to mostly positive reviews.
