A pet waste collection system comprising a frame, a mounting bracket, a spool, and a sensor. The frame defines a floor with a first end and a second end. The floor may be configured to receive waste from a pet. The mounting bracket may be located on the first end of the floor and configured to receive a wrapper cartridge. The spool may be located on the second end of the floor and configured to allow a film to be drawn from the wrapper cartridge across the floor and to roll the film around the spool. The sensor is configured to detect the presence of pet waste at the film proximate the floor.