William Cameron Menzies: William Cameron Menzies. Second Unit or Assistant Director: Gone with the Wind. William Cameron Menzies was educated at Yale University, the University of Edinburgh and at the Art Students League in New York. He entered the film industry in 1919, after serving with the U.S. Expeditionary Forces in World War I. His initial assignments were in film design and special effects, as assistant to Anton Grot at Famous Players-Lasky. Menzies...