Continuity mistake: In the beginning when the photo of the Master is broken, the pieces of glass change position and then disappear altogether.
Continuity mistake: The bite mark on the photo of the Master changes throughout the movie. Sometimes it's in the middle, sometimes it's nearer to the corner, sometimes it's not there at all.
Continuity mistake: When the song in the warehouse is about to play, the record player has no crack on it, but when the song starts, it has a large crack near the top.
Continuity mistake: When all the appliances are leaving their house for the first time, the doorknob is on the wrong side of the door and the door opens from the wrong side as well.
Answer: It is referring to a moment during the song "Worthless" toward the end of the movie, right before the Red Car sings. The photos he takes out have pictures of what looks like some exotic dancers on them.
Piemanmoo