Abstract: An improved photographic film packet (P) has a photosensitive film sheet (F) , an elongate carrier sheet (C), a light shielding envelope and a transversely disposed element (30) secured to the carrier (C). The light shielding envelope (E) has a closed leading end portion and a closable trailing end portion (46). The trailing end portion includes lateral edge portions 46a, 46b) The transversely disposed element (30) or clip, being substantially U-shaped, has a vertex (30v) with an interior wall (33) that enables at least the lateral edge portions (46a, 46b) of the trailing end portion (46) of the envelope E to abut thereagainst for closing the trailing end portion (46). In another embodiment of the invention, transversely disposed element (30) is also provided with inward-facing dimples (31d) on at least one segment of first and second flange portions (30a,30b) that project from the vertex (30v).