Other mistake: On the death certificate for Chrissie, the shark's first victim, the date of death is July 1st. But later, on the reward paper posted by the boy's mother, it says that the date of Alex's death was June 29th. Alex died after Chrissie, not before. Also, the form refers to the coroner as the "corner," and Jun 29th 1974 was a Saturday, not Sunday. (00:09:05 - 00:18:10)
Other mistake: Though he'd been a fixture in Dan Curtis productions for years, actor John Karlen's name was accidentally misspelled "Karlin" in this TV movie's closing credits. (01:09:00)
Other mistake: Clay Tanner plays Jack Henderson in this film, yet the end credits list him as "Delbert".