From Wikipedia: “Hemp for Victory is a black-and-white United States government film made during World War II, explaining the uses of hemp, encouraging farmers to grow as much as possible. The film was made to encourage farmers to grow hemp for the war effort because other industrial fibers, often imported from overseas, were in short supply. The film shows a history of hemp and hemp products, how hemp is grown, and how hemp is processed into rope, cloth, cordage, and other products.”
Unfortunately, the United States federal government prohibits the growing of hemp today, denying American farmers the ability to increase their revenue by growing the sustainable crop. Instead, farmers in Canada, China and other countries reap the economic and environmental benefits.