How many movies have Georges Lucas and Philippe Hériat collaborated on?

They have worked on 8 movies together! Their first movie together was Le Carnaval des vérités (1920) while their highest rated movie together was Napoleon (1927). They have not worked together since Napoléon vu par Abel Gance - Première partie : La jeunesse de Bonaparte (2024). They are most known for their drama films together.