Continuity mistake: A red car races by a cart, and the horse gets nervous and rears. Shot changes, and the horse is far away, relaxed. New shot, and the red car passes by the horse again, who gets nervous, though now remains on four legs. (00:18:21)
Continuity mistake: When Mollie gets in the car, her hands are covering her ears or not, depending on the shot back and forth.
Continuity mistake: When Ernest is eating soup, he covers his mouth with his left hand. Shot changes and his arm is away.
Continuity mistake: When Ernest is given the book, he turns it around to face the cover properly. In the close-up, the book is misplaced, and he turns it around again.
Revealing mistake: When the oil starts gushing, one can see a rectangle on the ground with different coloured grass, where the pumping mechanism to achieve the effect was buried.
Continuity mistake: When the movie begins, the chief holds the pipe of peace with his hands extended upwards. A shot later, they're pointing forward.
Other mistake: In the cemetery scene, one of the tombstones is shaking due to the wind.
Continuity mistake: Robert De Niro and Scott Shepherd (who is stood behind De Niro) are at a funeral, with nothing on their heads – but, in the blink of an eye, both of them have a hat on. (01:30:49)