Trivia

Following the argument with Sir Paul McCartney seen in the movie, George Harrison went home and wrote the song "Wah-Wah", which he recorded for his first solo album two years later. Three days after the argument with McCartney, Harrison temporarily quit the Beatles after a row with John Lennon. Harrison was coaxed back a week later, after McCartney promised that they would start recording in the band's new Apple Studios, instead of Twickenham Studios.

John Lennon believed that Director Michael Lindsay-Hogg deliberately avoided including shots of him and Yoko Ono in favor of more shots of Paul McCartney. Lennon said he felt that "the camera work was set up to show Paul and not to show anybody else" and that "the people that cut it, cut it as 'Paul is God' and we're just lyin' around ..." Ringo Starr also complained that most of the "clowning" he performed at the director's behest was never used.

A restored version of the film with additional material was planned for a DVD release in 2003, to accompany "Let It Be...Naked", Sir Paul McCartney's remix of the "Let It Be" album. However, in restoring the film, Apple Studios discovered that the additional unreleased footage of The Beatles contained too many controversial issues that still needed to be resolved. Press at the time reported Sir Paul McCartney and Sir Ringo Starr decided that the movie and its additional material would not be released on DVD during their lifetimes, over concerns that it could hurt The Beatles' brand. This changed when director Peter Jackson, for the project's 50th anniversary in 2020, re-edited the footage into a new film, The Beatles: Get Back (2021), and the original "Let It Be" movie was planned to be released as an extra with the "The Beatles: Get Back" DVD/Blu-ray. These plans were abandoned again because of the 2020 COVID-19 pandemic. "The Beatles: Get Back" became a three part TV series. On May 8, 2024, a remastered version of the original "Let It Be" film was released on Disney+.

The first cut, which was supervised by Michael Lindsay-Hogg and The Beatles, ran for three hours and thirty minutes. However, a second version was edited in the absence of John Lennon and Yoko Ono. This new cut (with a considerable amount of "John and Yoko" footage cut out) became the one hour and twenty-one-minute release that made the theaters.

The original title was "The Beatles Get Back" but since the group had released the "Get Back" single in the previous year, the movie and soundtrack album titles were re-named. During the rooftop concert, the police came in and interrupted the performance. The Beatles were disappointed that the London police asked them to stop. They were hoping that they would be arrested and dragged off to jail for disturbing the peace. Sir Paul McCartney said that it would have been a "great ending for the movie".