Jacques Rivette - Duelle (1976)2

Two immortal goddesses, the Moon Queen and the Sun Queen secretly move among humans. They are locked in a timeless struggle over possession of a magical diamond that allows its holder to remain in the mortal world beyond the arrival of their annual deadline, when they must return to their celestial realm or lose their powers. As they maneuver through Paris-using disguises, manipulation, and subtle supernatural influence-they each attempt to secure the diamond while avoiding direct confrontation, which would be forbidden by their cosmic rules. Their conflict becomes entangled with a young woman, a nightclub performer, who inadvertently becomes involved in their hidden war and is drawn into a world where reality, myth, and performance blur. As tensions rise, the boundaries between human and divine identities begin to destabilize.