The Unkindness of Ravens were inspired by figures from Norse and Celtic mythology such as the Valkyries and The Morrígan. Filming took place during 2014 in Fife, Edinburgh, and Perthshire, and moved into post-production in 2015. To help with costs, Brewster opened a crowdfunding campaign through Kickstarter, with the goal to raise £40,000. The campaign was successful and marked the first Scottish crowdfunding campaign to raise such a large amount of money and the highest funded British horror film on Kickstarter. Horror film critic Kim Newman reviewed "The Unkindness of Ravens", writing that it was "a demanding, complicated film which might well require repeat
Bleacher Creatures in a 2001 article. He also claimed that "They have thrown batteries, coins and a knife at opposing players" and that "They throw punches at one another." Longtime stadium usher Michael Swann, who used to work in Section 39 of the old stadium, also had a negative recollection of them: On occasion, one or more Creatures are asked to leave the stadium by police. The bleacher beer ban in 2000 was blamed on the Creatures, which they regard as a false accusation. They have also been accused of heckling rattled musicians in high school bands, which they do not deny.