Sir Paul McCartney has opened up about the deeply personal experience of seeing his "beautiful" late wife Linda McCartney on screen again in his new Prime Video documentary Man On The Run

Speaking at the event, as quoted by the Daily Mirror, McCartney admitted the documentary stirred powerful memories.

He said: "Seeing me and Linda interacting is very special because, you know, she is not here anymore.

"Me and Linda, the kids. The music. Me and John [Lennon, bandmate]. These memories, it is like a life flashing in front of you. There are so many cool things. Even though there are some embarrassing moments, I come out of it thinking, 'Yeah, I'm OK'. All the stuff with the kids and Linda is lovely to see. Obviously it's emotional because she looks so beautiful. She's so cool."

Linda, who died in 1998, shared four children with McCartney, Heather, 63, whom he adopted, Mary, 56, Stella, 53, and James, 48.

Fashion designer Stella was among those cheering when the Wings star spoke about her mother, who formed the successful group Wings with her father in 1971, following the demise of the legendary Liverpool band the year before.

McCartney - who also has a 23-year-old daughter, Beatrice, with his second wife Heather Mills, 58, and is now married to 68-year-old Nancy Shevell - noted how seeing his family captured in those early years underscored just how much time has passed.

He added: "You know, and the kids aren't little anymore and they have kids of their own now."

McCartney credited Linda with anchoring him through the turbulent time when The Beatles split.

He confessed: "I had a fear of being a grownup. I felt very depressed, but I was very lucky because I had Linda."

Man on the Run, directed by Morgan Neville, uses rare home footage and Linda's own photography to chronicle McCartney's creative and personal rebirth in the 1970s.

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