Conversation so far:
what happened in 1953?
In 1953, soon after the production of Eaux d'Artifice, Kenneth Anger's mother died and he temporarily returned to the United States to assist with the distribution of her estate.
did Kenneth Anger do anything in the US?
Kenneth Anger befriended the film maker Stan Brakhage who had been inspired by Anger's film Fireworks, and the two collaborated on producing a film.

Question: what was the film?
Self-contained rewrite: What was the film produced by Kenneth Anger and Stan Brakhage?