The acting in the lead roles is consistently good, and Ricci is flat-out excellent as the cheeky but lovable teenager. Alternately projecting disdain and affection for her bumbling, ghost-shrink father, she is the very picture of adolescent hip: when the doctor is surprised to hear that she has seen a ghost in their new home, she haughtily comes back with, "Dad, please. Do not think I'm as crazy as I thought you were." The key to the film's success is the remarkable ability of the computer-animated spooks (who have more than forty minutes of screen time) to match Ricci's dramatic presence. Once we embrace the interaction of girl and phantoms, the film's slapstick moments are quite enjoyable. And then there's the added bonus of Dan Aykroyd, Clint Eastwood, Rodney Dangerfield, and Mel Gibson in outrageous cameo appearances.