"Sak!"

So, apparently, in the new John Carter, formerly "Of Mars" movie, the red Martians aren't red - they have little red tattoos or something.

Now I read that overall it's not too bad, and I'm going to buy the Blu-ray when it comes out for sure so they'll get more from me than the price of the movie eventually, but how dumb do these humps have to be to just casually wipe away the basic elements of a beloved story and expect to make their hundreds of millions back?