Penny Slinger

The Other Side of the Underneath is a 1972 British feature film written and directed by Jane Arden and starring Sheila Allen, Liz Danciger, Penny Slinger, Ann Lynn, and Suzanka Fraey. It is the only British feature film in the 1970s to be solely directed by a woman. Jane Arden herself also appears in the film. The title of the film is taken from a line in Arden's play Vagina Rex and the Gas Oven which was a huge success at the London Arts Lab in 1969.

Vibration uses two young western people as the mediators between the new gestalt initiated by Jung, Reich and Frederick Perles, explorers of the unconscious, and the magnetic chain of a Sufic master, finding that the East and the West, the scientific and the mystical, begin to hold together in a truly organic way.