Cost of John Carter: $250 mil
Cost of John Carter Advertising: $100 mil
Total: $350mil
Opening Weekend takings USA $30.6 mil
Opening Weekend takings UK £2.1 mil
Worldwide first weekend approx $100 mil
For Disney to break even after cinemas take their cut, takings needed $600 mil

Avatar in comparison:
cost $300 mil
takings $2,7
billionSource: The Times
Its a flop, I have to admit the adverts make it look terrible, its only a few seconds long, features a big gorilla thing and then just flashes John Carter in your face in huge letters, I thought it was some cheesy low budget junk aimed at little kiddies from the adverts.
I saw it yesterday. I'd say it is a cheesy, high budget, average action movie with a super hot actress in a skimpy outfit, aimed at little kiddies. It wasn't very good, but it had some decent action scenes (and a super hot actress in a skimpy outfit). I thought the overall plot was pretty good (probably have the books to thank for that, though I've never read them), but it just didn't come off well. Probably because it was too much a Disney children's movie. They should have done it in the style of the new Conan, that'd have been great.

It's basically a pulp version of Dune, assuming they more or less follow the plot of the book. Human goes to alien world (not a desert in the book though) goes native, saves world.
Wait, spaceships? WTF? I thought they only had airships...
You can rest easy, there's not a single spaceship in the movie. Just a whole bunch of airships. Your summary of the plot of the books is exactly that of the movie, though with all the details in your description it might as well have been of Avatar.
