How many movies have Albert Dieudonné and Léonce-Henri Burel collaborated on?

They have worked on 4 movies together! Their first movie together was Alsace (1916) 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 war films together.