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

They have worked on 4 movies together! Their first movie together was Salammbô (1925) 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 history films together.