Maybe itt will come to a swift end for us humans, if the prophecy is true that is, but to say it will end for all of the earthly inhabitants, I do believe it's truly far fetched, and so that means such a prophecy was somewhat biased, and quite obnoxious if you ask me.
Whoever came up with such a thing many years ago, they must have really had their marbles screwed backwards LOL. "This is my honest opinion, and not a fact" :)
Plus they already made a new Superman movie, due to come out in 2013, and why would Hollywood make a movie for next year if they knew the world would come to an end this year. Go Figure!