It was pretty good; especially if you've read the book.
I'm surprised by how many people comment on this movie with "I had no idea what this was about." or "John Carter was a rip off of [insert recent sci-fi movie here]"
Does no one read a book anymore? John Carter was inspired by "The Princess of Mars" written by Edgar Rice Burroughs in 1917.
Any one of you that are into sci-fi or fantasy would really enjoy it.