In the 1960s and 1970s, a number of avant-garde filmmakers moved away from standardized projection to explore “expanded cinema,” pushing the parameters of cinema as a means of expanding consciousness. In some cases this entailed using multiple projectors and formats to create one-of-kind experiences. We revisit this era, and beyond, with a selection of rarely screened double projection films, in which two images are simultaneously projected side by side, broadening the possibilities for aesthetic exploration, incorporating performance, psychedelics, and more. Also featured are single projection films that alter the cinematic experience with actions taken by either the audience or projectionist.