(Kevin Macdonald’s) new film takes its title – and a few electrifying performances – from John Lennon’s only full-length post-Beatles concert, a benefit for a children’s mental hospital. But it’s no concert movie. It’s 1971, and while Bob Dylan and many other of his contemporaries have abandoned politics for music, John is in a revolutionary mood, despite the growing sense of apathy in post-’60s America. ‘Flower power didn’t work,’ he says, speaking from his adopted home in New York’s village. ‘So what? We start again.’. Drawing on televised interviews, taped phone calls with agents and managers, and personal film footage – much of it new to this film – Macdonald charts the couple’s determination to fight for any worthy cause that crosses their eyeline, from the Vietnam War to fundraising for remanded prisoners unable to afford bail…. Two things elevate One to One beyond the sum of its fly-on-the-wall intimacy, revolutionary spirit and musical performances (overseen by the couple’s son, Sean Ono Lennon).  – Time Out

“[Lennon] truly was a walking contradiction… All of that ripples through “One to One,” making it the rare rock doc that’s a must-see” -Variety