Edgar Wright is among those paying tribute
The song was meant to be the title track of his unreleased debut album
The late Beatle would have turned 80 today
The Beatle rejected the honour to protest the Vietnam War and Britain's involvement in the conflict in Biafra
"I think in a lot of ways he would have been like David Bowie, very moved by the internet"
A mix of old footage and new content will air later this week
"I had one of his first LPs at home before The Beatles."
The Beatle spoke to Lennon's son Sean for 'John Lennon At 80'
'Grow Old With Me' was released a month before Lennon's death in December 1980
"It really, really would have been a heartache to me if we hadn't have reunited"