But look past those, and the usual goofs, to the movie's use of the GPS system in the Luxury European Automobile driven by Our Hero, the ghost. The GPS, apparently living in the past, re-creates a recent trip.
The ghost tries to make his own way but eventually submits to the route advocated by the nagging, unflagging monotone. And discovers ... OK, no spoilers.
How long before the talkative GPS becomes a movie cliche?
Perhaps it will outlast the technology. After all, some movies still feature pre-digital, pre-call-display telephone answering machines that play messages while they are being recorded.
Come to think of it, that device is too handy to abandon just because it's obsolete.