Key Points HBO Max has announced the first authorized Gilmore Girls documentary, though no release date has been revealed yet. The documentary joins other upcoming Gilmore Girls projects, including a new book from Amy and Daniel expected in fall 2027. More than 25 years after Gilmore Girls first premiered, HBO Max has announced that an official documentary about the beloved series is in the works. “We will NEVER be done with Gilmore Girls. What will the ‘Gilmore Girls’ documentary be about?