Singer-songwriter Gracie Abrams said it is "so amazing to witness" actor Paul Mescal practicing left-handed guitar for an upcoming Beatles movie [1, 2].

The observation highlights the rigorous physical preparation required for one of the most anticipated biographical films in recent years. Because Paul McCartney is famously left-handed, Mescal must adapt his musical approach to maintain authenticity on screen.

Abrams said her reactions during a session at an art studio in Brooklyn, New York [1]. The actor is training to embody McCartney's specific playing style and stage presence to ensure the performance aligns with the historical record of the band's legendary bassist and songwriter.

This preparation is part of a broader lead-up to a Rolling Stone cover story scheduled for publication in September 2026 [1]. The film seeks to recreate the Beatles' era with a high level of technical accuracy, extending from the costumes to the specific way the musicians hold their instruments.

Mescal has not previously played a professional musician of this caliber, making the transition to left-handed guitar a significant part of his character work [3, 1]. Abrams' comments emphasize the dedication involved in the actor's process as he prepares for the role's public debut.

"so amazing to witness"

The focus on technical accuracy, such as learning a mirrored guitar orientation, suggests the production is prioritizing a naturalistic portrayal over digital shortcuts. This level of commitment from Paul Mescal indicates the film intends to capture the precise physicality of the Beatles' performances, which is critical for satisfying a highly attentive global fanbase.