Factual error: Inspector Clouseau's watch may be broken but Hercule's doesn't keep very good time either. They synchonise watches at 7:47. 18 seconds later, Hercule says he has 7:47 and 23 seconds. (01:28:14)
Factual error: Charlotte tells the sheriff that when her cousin Miriam arrives, she will know how to handle the County Commissioner. Louisiana doesn't have counties. They have parishes. (00:25:25)
Factual error: The movie shows a 'jet' aircraft belonging to 'consolidated airlines'. The so called airplane is a laugh. It has two jet engines attached to the horizontal stabilizers. The landing gear appear to be bolted to the wings. During the movie this plane crashes and the engines are moved to a terminal to be examined. They are too small to be real engines. During the course of examining the engines, they are run inside the terminal building. One of the investigators stands 10 feet behind the jet intake and is not sucked inside. The cockpit is not even close to what one would find in a jet airplane.