Who would have believed it? I mean, I know they cast roles, and they were doing writes and rewrites on the script . . . but it looks like its for real! Motion/Captured reports that shooting began on Stanton's adaptation in London on Friday (01/15/10). You can read about casting in an earlier entry here at Nerdbloggers. Final product still due in 2012.
Now let's continue to hope that that pesky Mayan Prophecy doesn't get in our way!
Here's a link to the artilce at Motion/Captured: http://www.hitfix.com/blogs/2008-12-6-motion-captured/posts/john-carter-of-mars-is-shooting-and-all-is-right-with-the-world
In case you missed it, here and here are two Variety articles on the casting of the film.