As of 2015, Wal-Mart sells several different types of film for Polaroid 600 cameras. The retailer carries Impossible Color Instant Film, Impossible Project Instant Film and two types of Impossible Black & White Film.
The Impossible brand launched a new line of instant film for Polaroid 600 cameras in 2011. Polaroid discontinued color film for the camera in 2008, but Impossible brought it back with the PX 680 Color Shade Fist Flush line. The film also can be used with SX-70 models if a neutral density filter also is used. Impossible has branded itself as the savior of instant film.