the movie be apparently base on a popular french horror novel and by arthur bernède and from 1927. not that i have ever hear about it before but belphégor have be a popular subject before for movie and mini series . the first movie get release way back in 1927 and simultaneously with the novel . arthur bernède be a part of a group of writer who write and produce film and novel simultaneously . the character belphégor be one of his best know creation . once upon a time sophie marceau be a promising new european actress who would conquer hollywood . she have now however drop back again to movie like this one . nothing wrong with play in french quality movie and since it the country she originate from but this movie be just ridicule . problem be mostly that the movie rely on it special effect and to make the movie good and scary . well and horror and special effect never really have be a good combination though and with some exception here and there . it not like the special effect be bad in this one . especially for an european movie it be simply good but it while s just misplace and since the movie give the feeling it could have easily do without it effect . it would have actually make the movie a good and scary one to watch and no doubt about that really . the movie be just not ever tense or engage to watch and also since the movie seem to have difficulty pick the right approach . at time the movie pick a light and just less serious approach and while at others it clearly attempt to be a good scary horror movie . this be mostly the reason why the movie just doesn not work out on any level . you can say that the movie be even a bit boring . it all also definitely get bad toward the end . after a while you just stop care about this movie and it story and you start wish you have decide to watch something else instead . the edit seem totally off . it use too fast cut and without much style and while the fast editing be obviously intend to give the movie a good and modern style . also the time line be just plain mess up at time and a if some sequence get edit in the wrong order . the musical score be also really annoy and at time doesn not even sound to fit the movie and a if it all long get score before the movie finish shoot . i can not believe composer bruno coulais be an oscar nominate composer . the musical score be almost just as annoy a the movie it sound effect . the movie be fill with many character and which you however just couldn not care less about . it also just seem very unlikely that a woman like sophie marceau would ever fall for a man such a frédéric diefenthal . the movie also feature julie christie and which be nice but just doesn not add much to the movie . a horrible watch . negative .