The omens are good that the long gestating John Carter of Mars movie is now a certainty, with further casting announcements having been made. English actors Samantha Morton, Dominic West and Polly Walker have all joined Disney's adaptation of the Edgar Rice Burroughs book series. Morton plays Sola, a Martian who befriends Carter; West plays Sab Than, prince of the Zodangans and Walker takes on the role of the merciless Sarkoja. Taylor Kitsch (best known by genre fans as Gambit in the recent Wolverine movie) has already signed on as Carter. Andrew Stanton, a long time Pixar alumni (his credits include the marvellous Wall-E) is directing for a 2012 release date.