The cemetery scenes were shot at an actual cemetery on Halloween night 1980. The open grave used in the film was an actual open grave awaiting a funeral.
In 2014 it was discovered that "The Prowler" had been re-released to a handful of theaters in North and South Carolina as "Pitchfork Massacre" in the Spring of 1984. It is still unknown who the distributor was, or whether they had legally acquired the rights to do so.
This film was the reason that director Joseph Zito was later selected to direct Friday the 13th: The Final Chapter (1984).
The house used for Major Chatham's house was actually a museum. The furniture inside was all antique and the owners would only allow a skeleton crew to shoot inside.