A scene in "Saw III" explores Amanda's self-injuring tendencies, and shows her cutting the inside of her thigh. The scene was not in the original script, and instead there was a brief scene in which Amanda is shown squeezing a razor blade (which was later replaced by a scene of Amanda squeezing a leather cutter), only hinting at Amanda self-injuring. Prior to filming, Smith had been reading "A Bright Red Scream", a book that explains the reasons one would turn to self-injury. It was Smith who insisted that a self-injury scene be filmed and put into the film, believing it was necessary to show Amanda's tendencies for character depth.