English actors Samantha Morton, Dominic West and Polly Walker have joined "
John Carter of Mars," Disney's adaptation of the Edgar Rice Burroughs book series that Andrew Stanton is directing.
Taylor Kitsch, Lynn Collins and Willem Dafoe already are on board the production, which centers on a Civil War veteran (Kitsch) who finds himself mysteriously transported to Mars, where he becomes embroiled with the planet's warring people.