Looks like Tarantino and Rodriguez are going to release a companion book to go along with the Grind House movie. Tarantino had planned to do something similar with Kill Bill, and the project ended up being scrapped for unknown reasons – hopefully this one makes it to market.
Here are some details from the Trouble Maker Publishing website. The image below is apparently the proposed book cover. [thanks to Jules for the tip]

COMING SUMMER 2006…
GRIND HOUSE: THE SLEAZE-FILLED SAGA OF AN EXPLOITATION DOUBLE FEATURE
by Quentin Tarantino and Robert Rodriguez
This 250 page hardcover companion book to GRIND HOUSE offers fans an insider’s look into the making of the hotly anticipated double feature by Quentin Tarantino and Robert Rodriguez. Filled with cast and crew interviews, hundreds of full-color photographs, never-before-seen conceptual art and an in-depth history of the grindhouse genre by the directors themselves, GRIND HOUSE: THE SLEAZE FILLED SAGA OF AN EXPLOITATION DOUBLE FEATURE is the essential fan’s guide to the two-fisted bloodbath of the year.


UPDATE: The GRINDHOUSE Companion Book is now shipping.