The film that director Peter Jackson is making on The Beatles' 1969 Get Back/Let It Be sessions looks like it'll be out in the early fall.
There's an Amazon listing for a book called Get Back: The Beatles that will be published on October 15th. Daily Beatle reports that the book's publisher says it's a companion to Jackson's film and "is the authorized story of the making of the Let It Be album and the Beatles’ breakup, told through exclusive photographs, transcripts of the recording sessions and an essay by [British playwright and novelist] Hanif Kureishi."
Jackson's film is based on 55 hours of previously unseen film shot by Let It Be director Michael Lindsay-Hogg and 140 hours of audio the band recorded in January 1969. Its release is expected alongside an expanded version of the original Let It Be album and the long out-of-print Let It Be film, which shows the band in not the most flattering light.
There are a lot of bootlegs that document these sessions -- I hope they release the best of that material.
Source: Ultimate Classic Rock