 During the filming of the cemetery sequence, shot on two separate  days, an unexpected accident caused a fast change of script. The car  driven by Barbara and Johnny into the cemetery was actually owned by  the mother of Russell Streiner (qv). Unfortunately, sometime  between the two filming sequences, someone ran into the car and put  a dent in it that would easily be visible on camera.  George A. Romero (I) (qv) rewrote the scene so the car would come  to a stop by crashing into a tree.