This is a very worthy addition to the horror franchise that is The Exorcist. Now as a prequel the story focuses on the origin of Father Merrin ( one of the priests that exorcised Regan in the original) who is played brilliantly by Stellan Skarsgard. It takes place in Africa and the cinematography and direction are very good. The only qualm I have about this film is that I think there is way to much CGI. The original Exorcist was made in 1973 way before computer graphics where invented so the film makers had to do in camera effects which I find to be a lot more effective in the way of horror films. So I recommend seeing it but the CGI is way overdone.