Agatha

A person of indeterminate gender sets out on an expedition to a planet without speech. A meeting with a being called Agatha constitutes a turning point: the communication between them adapting itself to the particularities of their environment. A psychosexual journey into otherness, and an encounter with the diversity of self, through the discovery of the somatic in place of words, the film is based on a dream had by the radical avant-garde composer Cornelius Cardew.

There was a trailer...but, it has since disappeared.