Abstract: A system is provided for bringing a film, forming at least a partial coating of a molded object, into a mold. In this system, the transport device includes means for holding the film in position during transport thereof from the waiting position to the working position, and two cooperating members, of the rack or screw type, meshing with each other, the first of which is parallel to the direction of movement of the movable part of the mold and is fixed to one of the parts thereof and the second of which is secured to the means for holding the film in position and may slide in the movable part of the mold.