But one thing just glared out on review, concerning the title, John Carter. I've just sort of passed my eyes over all the talk about marketing movies with Mars in the title, etc. But John Carter announcing himself to be John Carter of Mars was a major character beat. John Carter instead of John Carter of Mars was correct. Since Carter's choice between Mars and Earth basically was Carter's "character arc," or, rather, dramatic resolution, John Carter is arguably a better choice than A Princess of Mars.