Many of the directors on this list are genre-hoppers, so it isnt so surprising that they would take a crack at horror. While Robert Zemeckis isnt quite confined to one particular genre, he is probably the candidate for least likely to make a horror. His best-known works are fun, zany, endearing movies that are generally well-suited for the whole family: Back To The Future, Forrest Gump, Who Framed Roger Rabbit, etc. More recently, he took a decidedly unfortunate turn into the uncanny valley of motion capture animation, directing The Polar Express, Beowulf, and others less noteworthy (the characters dead eyes are the closest hes come to horror since). Smack in the middle of his career, however, Zemeckis took a left turn and directed What Lies Beneath. This movie is not zany or endearing or wholesome, its just terrifying. Michelle Pfieffer plays a housewife dealing with a vengeful ghost (as you do) but shes riddled with doubt as to whether or not shes just losing her mind. Harrison Ford is in peak form as a respectable professor/husband and the whole thing was written by Clark Gregg (Agent Coulson!). It will make you never want to get into a bathtub again - Roger Rabbit this aint.