Revealing mistake: During Fritz's fight with the giant anaconda in the swamp, James MacArthur's stunt double becomes apparent by virtue of a bald spot showing on the back of his head. (01:10:30)
Revealing mistake: In the scene where the logs are rolling down onto the pirates, you are given views of what's happening beneath the logs. Look closely at a pair of flailing feet. The pirate is wearing modern hiking boots.
Revealing mistake: When Fritz is showing Roberta how to fire the rifle, several camera truck tire tracks can be seen on the beach behind them. (01:37:10)
