Seed of Chucky (2004)

  This was, by far, the funniest entry in the series.

Chucky (Brad Dourif) and Tiffany (Jennifer Tilly) are back to being unanimated dolls starring in a Hollywood slasher movie when they are awoken by their son, Glen (Billy Boyd).  Glen has spent his entire life on a British puppet circuit, believing himself to be an orphan, when he happens to catch sight of an entertainment piece on the "urban legend" of the killer doll and his evil bride.  Being reunited as a family causes Tiffany to long to be human again and she sets her sights on actress Jennifer Tilly as a host.  Tilly is trying desperately to boost her career by petitioning for the role of the Virgin Mary in a new Redman movie while her long-suffering assistant, Joan (Hannah Spearitt), tries to keep everything else in check.  Meanwhile, Chucky tries to bond with his son the only way he knows how --murder-- but Glen doesn't quite have the stomach for it.

I have to give it to Jennifer Tilly, she has a great sense of humor.  She makes jokes at her own expense about being a C-list actress, about her voice, about being considered "fat" in Hollywood, and pretty much everything else.  This film also references every other horror film from Universal classic monsters to Psycho and The Shining.  Even Ed Wood's transvestite horror Glen or Glenda makes the cut.  As a horror film, it doesn't always work, but as a comedy it's pretty decent.