re. reversing images, what i see the most often is when you see the moon, whether in the movies or even on nature documentaries on tv, lit from the wrong direction.
like, a couple of days ago, during a night scene, we could see the moon lit from the top by the sun, when the sun should light the moon from the bottom.
or, what we see quite often is the moon rising from the west instead of from the east; same for the sun itself; they just run a piece of film backwards...
"no one will see it".