If you are looking for a ghost story with a difference, then writer/director Olivier Assayas’ (Carlos) latest genre-bender Personal Shopper may be just what you are after. The film initially plods along, with Kristen Stewart (Twilight) leading in an odd combination of a haunted house type story and an insight into the world of Parisian socialites and celebrities. But what gives Personal Shopper an edge is how the movie morphs into a gripping suspense/thriller in its latter half, managing to creep me out more than any other horror that I’ve seen in quite some time. Quite the feat! Maureen (Stewart)…