Continuity mistake: During one scene in the film Bones' girlfriend is looking at an old picture of her & him. You see her holding the picture and Bones turns and looks at her and she screams and she drops the picture. At the end of the movie the main character finds the picture and is looking at it. Bones once again turns his head and looks at the person. However, it's the same clip as before because you see a woman's hand with red nail polish holding the picture.
Continuity mistake: When the photograph is shown from the front, it is quite tattered and exhibits several obvious creases. When the photo is dropped on the ground it is shown from the back as just a white rectangular paper with no creases at all.