This largely unseen film (made in 1972 and not released until 1991) was made using a 3-D stereoscopic process trademarked under the name "Space Vision." Unlike color process three dimensional films, which require specially colored glasses for viewing and which frequently produce eyestrain, "Space Vision" is based on a polarized light process and can be shot on one negative. It is viewed with polarized glasses and is easier on the eyes. The story follows an American G.I., returning from a tour in Vietnam, and his girlfriend (a sexual tease) who is going blind, as they take a tour of Japan. Very little happens, and the film appears to have been designed chiefly to show off its boffo three-dimensional effects. ~ Clarke Fountain, All Movie Guide