Embodiments of the present disclosure are directed to perforated polymer films and methods of making the same. In some embodiments the films are for use with implantable medical devices. In one embodiment there is a flexible body including a polymer film having a first surface and an opposing second surface the film having a plurality of apertures extending from the first surface to the second surface and a plurality of raised lips protruding from the first surface such that each of the plurality of apertures is surrounded by a one of the plurality of raised lips. In one embodiment the film comprises a single layer and in another embodiment the film can comprise a plurality of layers. In certain embodiments the film can comprise an adhesive layer. In another embodiment one or more of the layers may be a drug containing layer and/or a rate controlling layer for drug release.
