Disney has released the official trailer for John Carter, which has a scheduled movie premier in 2012.
Obviously, they decided to drop the "of Mars" for this movie. Maybe they're hoping this will have a sequel (franchise?) so that the next movie will be "John Carter of Mars"?
One can only hope that the live-action movie will be a hit, since Disney really needs one in this genre. It will also be interesting to see how Andrew Stanton of Pixar's "Finding Nemo" and "Wall-E" tackles this.