Its publicists have emphasised the fact that this comes from the writer of Juno, Diablo Cody, but I'm not sure the typical Juno fan will want to see it. True, its screenplay is decorated with Cody's trademark version of teen slang, full of trying-too-hard coinages, but that stuff was no more the essence of Juno than it is of this comic-horror movie. It's that genre's fans who should be the film's target audience, though even they are unlikely to have a whale of a time. What Cody and the director, Karyn Kusama, have come up with is only slightly funny and not at all scary. Megan Fox plays Jennifer, a high-school vamp who becomes demonic and develops a taste for male human flesh. In this state, Jennifer is dead-eyed and impassive, but a good actress might yet have played her in a lively, knowing way. Fox's dead-eyed impassiveness seems all too much her own.
15, 102 mins