When the floor manager at the beginning of the film shouts "Hey, Tiffany's left arm is loose again" and then the arm grabs his crotch, this is an in-joke as revealed on the DVD commentary for Bride of Chucky (1998). Jennifer Tilly explains that Chucky's left arm kept grabbing her breasts during shoots.
The gender confused child of Chucky and Tiffany is named either Glen or Glenda by his parents. Glen or Glenda (1953) was Edward D. Wood Jr.'s film in which Wood himself portrayed the transvestite known as Glen or Glenda.
What are the differences between the r-rated and unrated version?
A
Although the unrated-DVD is covered with a bloody unrated-sign on the frontcover this version of the movie does not offer any new gore scenes which you could not see in the theatrical version (r-rated). Only Chuckys masturbationscene has been changed slightly and the unrated version offers a new ending. A detailed comparison between both versions can be found here.