As reported here some time ago, Pixar has plans to dip a toe into live action waters with an adaptation of Edgar Rice Burroughs' John Carter of Mars, directed by Andrew Stanton (Finding Nemo, WALL-E).
Those plans appear to be gearing up, as Utah-based TV and radio station KSL reports that the state will be standing in for the red planet, with shooting expected to begin in November. The rather fiscally-focused piece describes the benefits of a large film crew "staying in our motel rooms and eating in our restaurants" for seven months.
John Carter, as Burroughs wrote him, is an American Civil War veteran prospecting for gold in Arizona when he's attacked by Indians and mysteriously transported to Mars, where he has super-strength due to low gravity. Burroughs was most famous for creating Tarzan, but there are also around a dozen entries in his "Barsoom" Mars series, although they don't all feature Carter.
A potential new franchise for Disney/Pixar then (initial indications were that a trilogy is mooted)...