I HAVE to add the spoilers tag to this post as I believe they are giving away a lot of visual sequences here that are in the movie. It's my preference to make sure you guys know that. Some studios can go overboard in their marketing to try and get the "on the fence" crowd to come and see their movies. For me though, that may ruin the films for those that say "you had me with the title".
So fair warning then: Spoilers may exist for you in these clips!
Here's the storyline once more:
From Academy Award winning filmmaker Andrew Stanton comes JOHN CARTER–a sweeping action-adventure set on the mysterious and exotic planet of Barsoom (Mars). JOHN CARTER is based on a classic novel by Edgar Rice Burroughs, whose highly imaginative adventures served as inspiration for many filmmakers, both past and present. The film tells the story of war-weary, former military captain John Carter (Taylor Kitsch), who is inexplicably transported to Mars where he becomes reluctantly embroiled in a conflict of epic proportions amongst the inhabitants of the planet, including Tars Tarkas (Willem Dafoe) and the captivating Princess Dejah Thoris (Lynn Collins). In a world on the brink of collapse, Carter rediscovers his humanity when he realizes that the survival of Barsoom and its people rests in his hands.
It's looking ridiculously good don't you think? :-)