Watch MoviestoWatch. This film, made by the artist, Robert Smithson, with the assistance of Virgina Dwan, Dwan Gallery & Douglas Christmas, Director, Ace Gallery, (the aforementioned Dwan & Christmas also assisted Smithson financially with the making of the Spiral Jetty), is a poetic and process minded film depicting a "portrait" of his renowned earth work -- The Spiral Jetty, as it juts into the shallows off the shore of Utah's Great Salt Lake. A voice-over by Smithson reveals the evolution of the Spiral Jetty.