Add to My ListSharePlayback issues? Try another server.Server 1Server 2Server 3Server 4Server 5Server 6Server 7Server 8Server 9Server 10Server 11Server 12Server 13Server 14Server 15Working on the Douro River1931720 minDocumentaryReleasedSep 19, 1931CountryPortugalDirectorManoel de OliveiraShort silent documentary from 1931 about those working on the River Douro in Oporto.