Never heard of whatever that is. Nor this movie until now... I also don't have TV though.
Edgar Rice Burroughs. A bit more known as the author of Tarzan.

Did lots of pulp-adventure novels way back in the day. Tarzan's obviously his biggie, but he also wrote http://en.wikipedia.org/wiki/Edgar_Rice_Burroughs#Selected_bibliography. (11 Mars books, for instance.)
I read the John Carter books when I was a kid, and then a few more times over the years. They're fun, but not terribly deep... as would be expected of pulp adventures.
re: money & loss. The film also got 70m+ international. Given a few weeks, there's good odds that it'll make it's money.

edit: also, all the various "never heard of it" comments..... holy crap, they carpet-bombed the world with their film marketing. For, like, months. Not sure how you'd miss it.
