Elements of mise en scène: Color
Color movie film has been around since 1906, when a process was developed using two filters, red and green, in shooting and projection. The process produced inferior results, and it was expensive.
Technicolor was developed in 1932, using three strips of film to record red, green and blue. Walt Disney had an exclusive 5-year contract to use Technicolor for his animated films, but demand was such that the contract was shortened to one year.
Color came into its own in 1939, when technicolor was used in two important films, The Wizard of Oz and Gone with the Wind.