This one has uncountable references to classic Hollywood movies and anecdotes.
— Terry actually meant for Gaspode to die at the end of the book, but his editors/beta-readers made him reconsider.
— People have noticed that the two femmes fatale of this novel are called Ginger and Ruby, both names signifying a red colour. Terry Pratchett says that he did not intend this as a reference to Gone with the Wind’s Scarlett.
— Instead, Ruby got her name because like all trolls she needed a mineral name. Ginger got her name because Terry wanted to use the Fred Astaire quote (see a few annotations further down) about her partner, and so Ginger was an obvious choice for the leading lady’s name.