The Lost Letter (Russian: Пропа́вшая гра́мота, Propavshaya gramota), or A Disappeared Diploma, is a 1945 Soviet animated film directed by the "grandmothers of the Russian animation", Brumberg sisters, and Lamis Bredis. It is the first Soviet traditionally-animated feature film. It was produced at the Soyuzmultfilm studio in Moscow and is based on the story with the same name by Nikolai Gogol. The creators of the film managed to convey national Ukrainian color and to recreate the magical, fantastic atmosphere peculiar to works of the writer. Also, for a more realistic style of dance in the Zaporozhets and the Cossack, Igor Moiseyev was involved.