Open Water

At the conclusion of the film, the porter from the ship that stranded Susan (Blanchard Ryan) and Daniel (Daniel Travis) discovers that they did not return with the rest of the tourists. An extensive rescue mission is dispatched. Meanwhile, Daniel bleeds to death due to his shark bite and Susan lets go of him after discovering that he no longer has a pulse. Sharks ravage his body and pull him beneath the surface. Because of Daniel's decaying body, several sharks begin to circle close to Susan. Unaware that the rescue teams are out to find her, she allows herself to sink beneath the surface of the ocean, finally giving up. As the credits roll, a man guts a shark and in the stomach finds Susan's yellow waterproof camera. He ponders, "I wonder who this belongs to," and the credits proceed.
Thanks, Johnny H and Katie L!