Keller-Dorian cinematography

Keller-Dorian cinematography was a French technique from the 1920s for filming movies in color, using a lenticular process to separate red, green and blue colors and record them on a single frame of black-and-white film.

[2] While researching how to create dies to color aluminum foil, they accidentally stumbled on this cinematography technique.

The system was used to film several scenes of Abel Gance's Napoléon (1927) and La Femme et le Pantin by Jacques de Baroncelli (1928).

However, the projection of this process in movie theaters seems to have been more difficult, so neither of these films was ever presented using this technique.

They were pioneers in employee benefits, and building housing compounds, which included low cost cafeterias adjacent to the factory in Lyon, France.