It seems that the same happens as in the google cache, because if you add in the search engine AllRovi URL is functioning normally, because when you add in the search engine old AllMovie URL does not work and displays the error mentioned above.
I strongly suspect that the server does not currently work, the more it is likely that this is really standing in the background for Rovi Corporation (this is their policy to completely forget the old AllMovie.com), which blocks the old AllMovie URLs with a specific tool that does not appear any more old AllMovie web pages.
But I hope to be wrong in this.
Edit:
Apparently I was wrong. Looks like a temporary server did not work, because now works again.