<tinfoil>The camera didn't capture the moon (out of shot, poor lighting, whatever), and they edited that in.</tinfoil> Or maybe they just wanted to tweak it wi

<tinfoil>The camera didn't capture the moon (out of shot, poor lighting, whatever), and they edited that in.</tinfoil> Or maybe they just wanted to tweak it with a filter to make the moon more visible, but applied the filter to a rectangular area.