Yoko Ono has posted a 70-minute documentary that she made with John Lennon in 1969 online.

Titled 'Bed Peace', the film (previously available on VHS) shows the couple's second attempt to promote world peace by lying in bed for a week at the height of the Vietnam war.

Ono said her reason for posting the documentary online is to "give encouragement and inspiration to the activists of today".

Ono and her late husband spent their honeymoon in bed at the Amsterdam Hilton, speaking to members of the press about their initiative before flying to Montreal, Canada to repeat their act of non-violent protest.

Those who visit them there are shown in the flm and include the activist Dick Gregory, Timothy Leary, DJ Murray The K and the Beatles' publicist Derek Taylor.

Writing beneath the video post, Ono said:

"Dear Friends,

In 1969, John and I were so naive to think that doing the Bed-In would help change the world. Well, it might have. But at the time, we didn't know.
It was good that we filmed it, though. The film is powerful now. What we said then could have been said now.

In fact, there are things that we said then in the film, which may give some encouragement and inspiration to the activists of today. Good luck to us all.
Let's remember WAR IS OVER if we want it. It's up to us, and nobody else. John would have wanted to say that."

The 78-year old artist posted the film on her website at the weekend. It was her intent to remove it after 48 hours but after receiving so many fan requests the film will remain online until August 21. 

Watch 'Bed Peace' here: