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The position of the mattress on the patio changes position between scenes, especially when Teresa places the paper between Dickie's toes and lights them.
The record with the Cul-de-sac theme that Nicolas scratched is different from the one Teresa later plays and jumps.
The water level and the position of the car changes between shots when Dickie takes George and Teresa to push the car onto the island.
Crew or equipment visible
When Dickie is pushing the car, the shadow of the camera and the cameraman can be seen on him.
When Richard shoots the Thompson, nothing happens, but when shots are over, holes appear on the car, revealing that no real bullets were fired.
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