Ono was also an experimental filmmaker who made 16 short films between 1964 and 1972, gaining particular renown for a 1966 Fluxus film called simply No.
4, often referred to as Bottoms.
The five-and-a-half-minute film consists of a series of close-ups of human buttocks walking on a treadmill.
The screen is divided into four almost equal sections by the elements of the gluteal cleft and the horizontal gluteal crease.
The soundtrack consists of interviews with those who are being filmed, as well as those considering joining the project.
In 1996, the watch manufacturing company Swatch produced a limited edition watch that commemorated this film.

In March 2004, the ICA London, showed most of her films from this period in their exhibition The Rare Films of Yoko Ono.
She also acted in an obscure exploitation film in 1965, Satan's Bed.
Ono was also an experimental filmmaker who made 16 short films between 1964 and 1972, gaining particular renown for a 1966 Fluxus film called simply No. 4, often referred to as Bottoms. The five-and-a-half-minute film consists of a series of close-ups of human buttocks walking on a treadmill. The screen is divided into four almost equal sections by the elements of the gluteal cleft and the horizontal gluteal crease. The soundtrack consists of interviews with those who are being filmed, as well as those considering joining the project. In 1996, the watch manufacturing company Swatch produced a limited edition watch that commemorated this film.
In March 2004, the ICA London, showed most of her films from this period in their exhibition The Rare Films of Yoko Ono. She also acted in an obscure exploitation film in 1965, Satan's Bed.
Yoko Ono