Best one I found was at the devilish website. Search for Metropolis (2010) and it will come up. The comments link to some subs others had done adjusting them 16 seconds, but I did it 15 1/2 and it is better.
Shouldn't be a problem linking to srt files, I would hope, since it's not the movie itself.
http://rapidshare.com/files/357122184/Metropolis__2010_.srt.html