Most movie ghosts are defined and restrained by certain ground rules. What kind of ghost is Cosby? The kind of ghost his children can see and hear sometimes, but not at other times, and who can sometimes pick up stuff although at other times his hands go right through things, and who is invisible in bright lights but visible in darkened rooms. In other words, a ghost created under such confusing rules that it can be anything at any time, which means that sometimes in the same scene or even the same series of shots Cosby appears or disappears according to no logical pattern.
But we're getting ahead of the story. What about that cab ride? The driver is some kind of wigged-out freak who thinks Cosby is God or the devil, and who drives at high speeds down city streets and country roads, sometimes getting from the city to the country in one shot, as if you could turn a downtown city corner and be instantly on a bridge in the wilderness. When the taxi is teetering on top of the bridge, not even the weight of Cosby's body hanging from an open door can pull it over the edge, but a few seconds later all it takes is a slight shift by the cabbie to send the taxi tumbling to a watery grave.
Why do I describe silly details like this? Because they illustrate how half-baked and lame-brained the screenplay is. The movie doesn't exhibit the slightest attempt to be consistent, logical or sensible in anything, and there are scenes so pointless and unmotivated that attentive audiences will ask what they're doing in the movie.
Consider, for example, a scene where Cosby's boss and the entire executive committee turn up at his house demanding action on the big deal. Cosby (invisible) tells his young son to take them into the library and "stall them," and then he wraps himself in mufflers to make himself visible (like the hero of "The Invisible Man"), so that he can go next door and have a meaningless conversation with his neighbor. Why go next door when his whole career hangs in the balance? The movie doesn't even begin to explain, and during his visit to the neighbor I paid close attention without being able to figure out what he was trying to say to her, or why he was there in the first place.
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