La Nuit Américaine

The film takes its title from the French term for the analog film technique of shooting by day, with a complex set of lenses and filters, to simulate a deep black-blue night. Though used frequently in early Hollywood films, the deception was often compromised, giving away the trick—the sun creeping into the frame, a reflection that wouldn’t occur in the moon’s soft light. Staff uses the technique, but does nothing to hide that it was filmed during the daytime: people play golf, birds sing, shoppers consume, and families gather under sun umbrellas at the beach.

Official site