This article is about the use of multiple colors in cinema. For multicolor in textiles, see Pied (multicolor).

Multicolor is a subtractive natural color process for motion pictures. Multicolor, introduced to the motion picture industry in 1929, was based on the earlier Prizma Color process, and was the forerunner of Cinecolor. For a Multicolor film, a scene is shot with a normal camera capable of bipacking film. Two black-and-white 35 mm film negatives are threaded bipack in the camera. One records the color red (via a dyed panchromatic film), and the other, blue (orthochromatic). In printing, duplitized stock is exposed and processed with one record on each side. In a tank of toning solution, the film is floated upon the top of the solution with the appropriate chemical. The cyan record is toned a complementary red with a copper ferrocyanide solution, and the red being toned blue/cyan with ferric ferrocyanide solution.