‘Swamp’, a film by Robert Smithson and Nancy Holt (1969)
Robert Smithson said of the film :”it’s about deliberate obstructions or calculated aimlessness”. This was attained by having Holt walk through the swamp while simultaneously filming, only seeing where she was walking by looking through the lens of her Bolex camera, as Smithson gave her verbal instructions which he recorded as he spoke them.