The film was shot in the village of Lavenham in Suffolk in eastern England; the couple had decided to reject footage from an earlier filming attempt in the Hampshire town of Basingstoke. Lennon and Ono arrived at Lavenham's Market Place in their white Rolls-Royce driven by a chauffeur, and booked into the nearby Bull Hotel in Long Melford as 'Mr and Mrs Smith'. The couple were accompanied by a film crew who were shooting a documentary for the BBC, The World of John and Yoko, which was broadcast over the Christmas period of 1969.
A local building company, W A Deacon & Sons, erected scaffolding to secure the balloon before release. The workers also helped lift Lennon and Ono into and out of the basket. A photograph of Lennon and Ono in the balloon was on the front cover of the East Anglian Daily Times on the following Monday. The couple left the basket shortly before the launch of the balloon, causing members of the public who had gathered to heckle them.
Nic Kowland, a frequent technical collaborator on films made by Ono, helped with the technical aspects of the film. The idea for the film came from discussions the couple had had while making their album cover for Two Virgins while nude.
The 22,000 cubic metres (780,000 cu ft) of gas that filled the balloon cost £350, and permission for the flight was granted by the Ministry of Defence and Lavenham Parish Council. The parish council had been contacted by the Beatles' company Apple Corps two days prior to the shoot to ask permission to shoot the film. In a 2010 interview Ono said that making the film in Lavenham was "truly lovely" and that she would "love to go back there ... but it's not the same for me without John". The couple had previously directed the films Rape and Fly and subsequently collaborated on Up Your Legs Forever.
In 1972 the critic Jonas Mekas described the point at which the camera rose above the clouds as: "suddenly the cloud landscape opened up like a huge poem, you could see the tops of the clouds, all beautifully enveloped by sun, stretching into infinity..."
- "Film and Video: Yoko Ono "Apotheosis" (1970)". UBUWEB. Retrieved 16 September 2018.
- "When John Lennon brought a lot of hot air to Suffolk". East Anglian Daily Times. 7 December 2010. Retrieved 25 September 2018.
- Scott MacDonald (1992). A Critical Cinema 2: Interviews with Independent Filmmakers. University of California Press. pp. 153–. ISBN 978-0-520-07917-5.
- Daryl Chin (2002). Wheeler W. Dixon; Gwendolyn Audrey Foster (eds.). "Walking on thin Ice: The Films of Yoko Ono". Experimental Cinema: The Film Reader. Routledge. pp. 215–. ISBN 978-0-415-27787-7.
- "Conceptual Film: Actions". Tate. Retrieved 25 September 2018.
- Vogel, Amos. "John & Yoko at Cannes: 'I made a glass hammer'". The Village Voice. June 24, 1971.