Kodachrome was the first commercially successful application of monopack multilayer film, introduced in Later color films were standardized into two distinct processes:

A color film is made up of many different layers that work together to create the color image. It appears that Technicolor made no attempt to register Monopack as a trademark with the US Patent and Trademark Office , although it certainly asserted that term as if it were a registered trademark, and it had the force of a legal agreement between it and Eastman Kodak to back up that assertion. The only feature film known to have been made in this process, Cupid Angling — starring Ruth Roland and with cameo appearances by Mary Pickford and Douglas Fairbanks — was filmed in the Lake Lagunitas area of Marin County, California.

Eastman Color Negative 2 chemistry camera negative stocks, duplicating interpositive and internegative stocks and Eastman Color Positive 2 chemistry positive prints for direct projection , usually abbreviated as ECN-2 and ECP While every film is not as visually poetic as , many will employ a unique approach to slow-motion to enhance audience immersion.