Abstract: A processing kit for use in conjunction with an exposed roll of self-developing or instant type film, preferably of the transparency type. The kit includes a housing having a compartment for receiving a roll of flexible sheet material and a reservoir in which is located a container of liquid. The kit is adapted to be placed, as is, within a film processor, and a free end of the sheet, which initially protrudes from the kit, is attached to a take-up reel which, in turn, has an end of an exposed strip of self-developing type film attached thereto. Upon closing a loading door of the film processor, the container of liquid is ruptured and the take-up reel is driven in a manner so as to wind the sheet and film upon the take-up reel. As the sheet is being withdrawn from the kit, it is coated with the liquid and then brought into engagement with the film being wound on the reel so as to initiate the formation of visible images within adjacent sections of the film.