1. Originally, the climax scene of the Silent Hill movie featured several Pyramid Heads killing the cultists in the church instead of Alessa as it is seen in the final production.

2. Dark Alessa's appearance in the first Silent Hill movie is based on characters from two Italian horror films from the 60s: "Kill, Baby, Kill" and "Spirits of the Dead" ("Toby Dammit" story).

3. "The First Burning" painting in the Grand Hotel, showing the execution of the Arch Witch by the cultists, depicts Jennifer Carroll who is mentioned in SH2 & SH3 as having been killed for her religious beliefs.