re: How exactly did Superman make the Earth (and time) spin backwards?

There's actually some cartoon-physics logic to it in the style of Bugs Bunny kinda stuff. Let me explain.


If you travel East into another time zone, you'll set your clock ahead "jumping" forward an hour. Same thing happens in reverse if you travel West. If you travelled West faster than the earth rotates and kept adjusting your clock, then it would look like you were moving backwards in time (it helps if you're an idiot). That's why Superman flys right to left in the scene.

It's stupid, but not as stupid as reversing the Earth's rotation.