Horror movie makers sometimes consider religion as a cheap add-on to a plot. Little do they realize that a carefully constructed religion can convey very real fear. The Wicker Tree (2011), spiritual successor to The Wicker Man (1973), demonstrates this distinction clearly.
The Wicker Man, released the same year as The Exorcist, had something in common with that vastly more successful movie. The main theme of both is based on religion out of time. Father Karras doesn’t believe in demons, not in the modern 1970s! Meanwhile, on the island of Summerisle, Sergeant Neil Howie is confronting revivalist pagans who will eventually kill him as a sacrifice to their old gods. Such people hadn’t existed, he assumed, since the days of the Venerable Bede. The seventies were part of the pivot period for religion in horror. Certainly, religion has been part of horror from the very beginning (Dracula and his crucifix, Henry Frankenstein knowing what it feels like to be God), but it was brought to the foreground beginning in 1968 with Rosemary’s Baby. Then The Wicker Man showed that religious plots could be transatlantic. The movie, however, had greater success in the United States than in the United Kingdom.