I watned to spend a minute to thank you for this.

I have waited since the early 70s for somebody to make this film

Pixar has nothing to do with this film - it's just Walt Disney Pictures!

What the heck. This book, one of 11 in the series is all about the Princess. Thus its original book title, "Princess of Mars" though not the original story tittle, "The Moons of Mars". The brief description above does not even mention the Princess. This is as much a love story as it is science fiction.
I grew up reading all of Edgar Rice Burroughs Books. Every Martianl tale, Venus series, Tarzan and all the ones in between. I am a die hard fan and have extremely high expectations.
I am like and ERB trekie. When I worked at Star Trek The Experiance here in Las Vegas I worked with hard core trekies. when the last movie came out many of the trekies I worked with were disapointed because there were so many inconsistancies with the movie. I myself enjoyed the movie because I was unaware of these inconsistancies.
I fear John Carter, will have the same affect on me as the last Star Trek had on my trekie friends. I understand artistic license, but they have even changed the name, AGAIN!. Why did they take out "Of Mars" ? That is key. That is what gets peoples attention. Only ERB readers will know who John Carter is. The Mars Part of the name get peoples atention who havent read ERB and dont know who John Carter is.
They should go back to the orignal name of the book and call the movie "Princess of Mars" It is a title that definantly gets peoples attention.
In closeing I say to Disney and Pixar. You better not have F@*$^& it up or you will piss of literlay millions of fans who have been reading Princess of mars over the last 100 years. They have ben trying to make this movie for several decades. Finnaly with todays technology it can be made, and made worthy of what the book deserves. Keep your artistic license in your pants PIXAR.

I have only read the first three novels and am stunned at how awesome edgar rice burroughs is given he was laying out the foundation on what would become pulp and science fiction.
The whole civil war soldier thing and the books unexplained almost mystical process of getting from earth to "mars" needs to be retouched.