After Dersu Uzala was Kagemusha (Shadow Warrior), winner of the Cannes Palme d'Or in 1980, and Ran (Chaos, 1985), an adaptation of Shakespeare's King Lear which won him an Academy Award nomination for best director - a feat almost unheard of for a foreign-language film.
Currently, transactions within the shadow economy have to be made face to face, but an electronic System D currency would enable remote and even cross-border transactions.