Revealing mistake: When Tad begs his Mom to try turning on the car, Tad crosses his fingers before his Mom asks him to. (00:51:15)
Cujo (1983)
1 revealing mistake
Directed by: Lewis Teague
Starring: Dee Wallace, Christopher Stone, Danny Pintauro, Daniel Hugh Kelly
Visible crew/equipment: When the telephone rings, Cujo bounds over and begins barking at it. After he has finished barking, he lingers in the window frame, and then, you can see a crewmember's hand come in, and pull him down from the ledge. (00:55:30)
Donna Trenton: Please God get me out of here.
Answer: Not really. Rabies has a wide range of behavioural symptoms, and it's rare for a rabid dog to display what's called "furious rabies," whereby they become more aggressive. And even then, they wouldn't become single-mindedly determined to terrorise two people in a car. It's much more common for a rabid dog to get slower/lethargic as paralysis sets in, eventually leading to coma and death. You can find more info here: https://vcahospitals.com/know-your-pet/rabies-in-dogs.