Drowning Mona

• Movie Goof (audio/visual unsynchronized): When Jeff's in the graveyard threatening to commit suicide, you hear him cock the pistol but when he brings the gun up to his head the hammer isn't pulled back.
• Movie Goof (continuity error): When the coroner first jumps into the water to check on Mona's dead body, he is neck deep in water. For the rest of the scene, he is dry from the waist up.
• Rona Mace, played by Jamie Lee Curtis, is an anagram for "A Romance"
• Movie Goof (continuity error): When Ellen leaves the gas station after hearing what happened to Phil, her gas cap is on top of her car. When she stops the car in the next scene, the gas cap is mysteriously back in place.