Paul Mescal poses with Gracie Abrams at Paul McCartney documentary screening

Paul Mescal made a rare public appearance with his girlfriend Gracie Abrams at the screening of a new documentary about Sir Paul McCartney.

The Irish actor, most famous for roles in Normal People and Hamnet, will play the Beatle in the upcoming series of films about the Fab Four.

The pair were both dressed down for the occasion in dark coats and baseball caps but smiled cheerfully for the cameras.

The films star Harris Dickinson as John Lennon, Joseph Quinn as George Harrison and Barry Keoghan as Ringo Starr.

Sir Paul appeared to give his seal of approval to the casting of Mescal by posing with him and Abrams.

Also in attendance was Cruz Beckham, the son of Sir David and Lady Victoria Beckham, with his girlfriend Jackie Apostel, as well as musician Paul Weller, and Sharon Osbourne, the widow of rock star Ozzy Osbourne.

Directed by Morgan Neville, it chronicles his solo career through previously unseen footage and rare archival materials.

Man On The Run will launch globally on Prime Video on February 27.