Sir Paul McCartney's son James attends the premiere of Beatles documentary If These

Sir Paul McCartney's lookalike son James showed his support for his father at the London premiere of Beatles documentary If These Walls Could Sing on Monday.

The musician, 45, kept it casual as he stepped out with a guest at the star-studded premiere for the Disney+ documentary at Abbey Road Studios.

James is the only son of the Beatles singer, 80, and his late wife Linda McCartney - who also had two daughters, photographer Mary, 52, and designer Stella, 50.