Peter Jackson's 'Get Back' finds joy in final days of the Beatles

"The Beatles: Get Back," the eagerly awaited new Disney+ documentary from Peter Jackson, aims to dispel persistent myths about the Fab Four's breakup, offering a more positive take on their final months as a band.

The three-part series finds John Lennon, Paul McCartney, George Harrison and Ringo Starr in January 1969, preparing for their first concert in more than two years.

Using hours of unseen archive footage, it charts how the Beatles had set out to write and record 14 new songs for the occasion, giving themselves a deadline of just three weeks.

The time period is familiar territory for viewers of "Let It Be," the 1970 documentary from British director Michael Lindsay-Hogg that famously emphasized tensions and acrimony within the band, which split that same year.

But Jackson - best known for his "Lord of the Rings" trilogy, and an avowed Beatles obsessive - does not dwell on arguments and creative disagreements among the Liverpool quartet.

"Get Back" attempts to reshape the popular image of their later years as a time of resentment and fracture, instead showing the bandmates joking around and spontaneously creating classics that are still played regularly today.

"The best bit of us always has been, and always will be, when we're backs against the wall," says a young McCartney in the film, which hits Disney+ from Thursday.

Jackson's series contains the Beatles' final public appearance together, a 40-minute concert on the roof of their company building on London's Savile Row - shown here for the first time ever in its entirety.

That company - Apple Corps - granted Jackson some 60 hours of archival video that had remained under lock and key for decades.

"I think there's always been this misconception...