New Delhi, Jan. 30 -- Sony Pictures has unveiled the first official images of the cast for director Sam Mendes' Beatles biopic series, generating significant attention and mixed reactions from fans around the world.

The images reveal Paul Mescal as Paul McCartney, Harris Dickinson as John Lennon, Barry Keoghan as Ringo Starr and Joseph Quinn as George Harrison, each in character for their respective films.

The unique promotional effort involved hiding postcards with the images at the Liverpool Institute for Performing Arts for students to find, a nod to the band's Liverpool roots and an inventive way of releasing material.

Social media and online communities were quick to react after the images spread across the internet. Many fans pra...