The former Oasis frontman is developing a film about the legendary group - made up of Sir Paul McCartney, Ringo Starr and the late John Lennon and George Harrison - which will explore the band's 'stoned' years between 1967 and 1970, and their eventual demise.
Liam - who is heavily influenced by the Fab Four and in particular Lennon - has obtained the screen rights to Apple's former press officer Richard DiLello's memoirs, and the film will be based on an insider's view at the headquarters of the group's record company, Apple.
The 1972 book - 'The Longest Cocktail Party: An Insider's Diary Of The Beatles, Their Million Dollar Apple Empire And Its Wild Rise And Fall' - gives DiLello's take on the business and personal problems which drove the group apart.
It gives his account of "stoned conversations" which took place at the office's open bar and the movie will cover the years from when rock 'n' roll moved on from its carefree days to being controlled by multinational corporations.
Liam is working on the project with Revolution Films and it will be launched at the Cannes Film Festival next week.