A new John Lennon documentary is being produced by Britain's Channel 4 with the cooperation of Yoko Ono and the Lennon estate. PageSix.com reported, "John & Yoko: Above Us Only Sky ill air later this year. Producers Eagle Rock have secured previously unheard audio including the first demo of 'Imagine,' as well as never-heard-before interviews with one-time Beatle Lennon. Previously unseen footage will show him and Yoko working together in London." Returning to the Lennon fold will be Emmy Award-winning and Oscar-nominated director Michael Epstein -- best known for the 2010 LennoNYC documentary.

Eagle Rock CEO Terry Shand spoke of the project, saying, "With exclusive access to the extensive Lennon video, audio and photo archive, including much previously unseen material as well as interviews with a wide range of people directly involved with the recording, this is an exciting opportunity to tell this story fully for the first time."

No air-date has been announced for either the UK or the U.S.

Yoko Ono told us that while recording music with John Lennon during the 1970's, despite the indifference from the studio musicians, he never wavered in his support of her music: "It was thrown in during John's studio work, and he'd say, 'OK, let's do Yoko's -- she's got a new song,' or something. And I'd just do it. I must say, that John was my only fan, in a way. He loved them all and he would say something like, 'What about this? Isn't it great what she did?' And the musicians were all going (clears throat, laughs) they couldn't agree with John."

AUDIO: BOB GRUEN ON JOHN LENNON IN THE STUDIO
AUDIO: YOKO ONO ON JOHN LENNON BEING HER BIGGEST FAN