'Zathura' director Jon Favreau is the latest filmmaker to be put in charge of the ambitious science-fiction-fantasy 'John Carter of Mars - or A Princess of Mars' as it's currently being called. "The way it stands is that we have artists working on research, we're working on a script and we should know by the spring whether we're going ahead or if the project goes back on the woodpile," says Favreau.More...