The Reappearing Glass
Here’s something that many people were quick to notice, even when the film was still in theaters. When Rose cracks the emergency box to extract an ax, you can see her carefully shatter the glass around the edges. This is to prevent them from poking into her arm as she grabs the tool. Pretty good thinking, Rose!
But in the next scene, as she’s drawing the ax from the emergency box, the shards of glass on the edges reappear. Say what? Were we supposed to believe that this box regenerated glass fragments, or did James Cameron accidentally splice two contradicting shots together?