Factual error: When Bill Cosby (as a ghost) goes to the doctor and the doctor checks his heart (which is not beating), Bill Cosby then presses play on a tape recording of a sound of a beating heart. The doctor hears this through the stethoscope, even though the tape recorder is behind Bill's back, which is not possible.
Ghost Dad (1990)
1 factual error
Directed by: Sidney Poitier
Starring: Bill Cosby, Ian Bannen, Denise Nicholas, Kimberly Russell
Revealing mistake: The bottom of Tony's legs disappear when Elliot emerges from the phone and grabs hold of him.
Elliot Hopper: Cancel the 5.
Carol: Oh, no! You can't cancel the 5.
Elliot Hopper: Then put the 5 at 4, and then cancel at 4.
Trivia: Pamela Poitier, who plays the role of Nurse Satler, is the daughter of the film's director, Sidney Poitier.