Andrew Stanton, who directed lonely garbage robot movie Wall-E (hitting theaters next week), is already hard at work on his next Pixar flick. The movie is John Carter of Mars, and now Stanton has confirmed to /Film that the script will be based on one book from the beloved early-20th century series, A Princess of Mars. Currently he's just working on the script. Now you can try to figure out the plot of the movie by reading the entire book online. Since it was published in 1917, it's in the public domain and available at Google Books. Lots of violence and princess-rescuing! [A Princess of Mars via Google Books]