[1] The film documents the cultural impact of the Beatles on the United States in the aftermath of their first three-week visit to the country in February of 1964, in which their historic first performances on The Ed Sullivan Show occurred.

[5] Footage of the Beatles' February 1964 performances on The Ed Sullivan Show and at the Washington Coliseum in Washington, D.C. has also been restored, with audio from these performances remixed by Giles Martin using de-mixing technology developed by Peter Jackson's WingNut Films and previously used for Beatles releases on the 2022 reissue of Revolver and the 2023 reissue of 1962–1966.

Peter Bradshaw wrote in The Guardian: "Contemporary interviews and amazing archive footage combine in a sublime snapshot of the band’s whirlwind first US visit".

The website's consensus reads: "Excavating priceless footage of the Fab Four at the peak of their popularity, Beatles '64 places audiences directly into an unforgettable flashpoint in cultural history.

"[7] Metacritic, which uses a weighted average, assigned the film a score of 78 out of 100, based on 11 critics, indicating "generally favorable" reviews.