As for the actual time travel, I had always assumed that the Man of Steel time traveled as he always did, via high speed, but in the extended edition of the movie, Donner states: “And he stops the world. And now it’s actually going backwards. Which means, none of this actually happens.” Is that right? Does he reverse the spin of the Earth? CJ Moseley has more to say on the matter over at the Time Travel Nexus.