After the commercial success of The Exorcist in 1973, the low budget independent horror films of Hammer and American International fell into decline. The major Hollywood studios started financing more expensive genre movies. Twentieth Century Fox scored a box office hit with The Omen in 1976 proving once again that the supernatural was financially viable. Subsequently several independent film financiers realized that they would have to invest in bigger budget projects if they wished to compete. William Girdler’s 1978 adaptation of the bestselling horror novel, The Manitou, was one such example of this.