 FAKE: In the beginning, where Frank Morris is being escorted through  Alcatraz, we see him from behind, naked. We also see him being  escorted by the guards from within a cell, and very brief, you can  see that he is wearing a white towel around his hips. In the next  shot, he is seen naked from behind again. Finally when being put in  his cell, he is once again wearing a towel.