Color photography was first introduced to the public in 1932 when German filmmaker Agfa brought AgfaColor to the market. The first American color film was made by Kodak and called Kodachrome, based on three color emulsions. It became commercially available in 1935 and about three years later the 35 mm. motion picture color films started showing up in movie theaters.
But experimentation with color processes that would give true colors as well as being capable of profitable mass-production began long before that. Kodak has just released a video clip of some of their early trials and what makes this especially interesting is the date that they were doing this, 1922. They had remarkable processing already available more than ten years before they were able to make it commercially.
Enjoy this Kodak Moment from 1922: