Trivia: The decision to turn the Child's Play/Chucky franchise from a slasher-horror to a dark comedy series was inspired by several factors. In addition to 1996's meta horror-satire "Scream" making self-aware horror-comedies popular, series creator Don Mancini also felt that by the time "Child's Play 3" had come out, Chucky had become such a pop culture icon, he might never be properly "scary" ever again, since people were too familiar with him. And thus, in order to keep the series fresh, he and producer David Kirshner decided to make the fourth film more comedic and self-aware in tone.
Trivia: The "Voodoo for Dummies" book Tiff reads was a prop made for the movie. The apparent author is Don Mancini, the script writer. There is however a "Complete Idiot's Guide to Voodoo".