I just saw John Carter. Now, they could have done literally anything for the costume desgn, since the books had... None. But anyway, since they could have designed anything for the costumes and red Martian tattoos, apparently they decided to give Dejah Thoris Shanoa's clothing and shoulder tattoos for roughly half of the movie.
I mean... it's gotta be a coincidence, right? She wears the same top! And they patterned all of her tattoos in the same way as the art. And the text in the books is vague enough about those designs that they could be anything (and we all know about the clothes). So, it's very, very weird.