The Unborn, written and directed by Dark Knight coscribe David S. Goyer, comes across like a Jewish Exorcist. Odette Yustman (Cloverfield) plays a ? woman who’s apparently haunted by the ghost of her twin who died while still in the womb. Gary Oldman is the rabbi whose aid she seeks. And a dog with an upside-down head is…well, actually, the unfortunate pooch’s role is unclear. Indeed, Goyer has penned many scripts superior to this one (he co-wrote cult gem Dark City), but he does make sure you’re never far away from a big “Boo!” B?