John Carter's major & most obvious of problems is how messy it is how much sense it doesn't make.

As far as what I've been told, the films has crammed over 5 different plot elements & stories from the Barsoom series this movie is based on. However, by trying to cram in about 7 of the earlier stories into the last of the books into 2 hours is tricky & completely illogical, as illogical as when Shayamalan decided to use only 2 hours to make The Last Airbender & cramming in less than half of the the first book/season of the TV show & call it a movie. If you wanted to fit in maybe two books or a large Bible of a book (Stephen King's IT) into less than 3 hours, then go ahead, make that much smarter alternative movie, but fitting in over 12-15 worth of book material into 2 hours instead of 4 is a major mistake.

The rest of the film's problems are noticeable, & quite possibly the only redeeming factors it has are the performances & special effects.

One irrelevant problem but still a major fault as to why there is no possibility to a necessary sequel would be the massive flop it was at the box office. It DID do decent in the box office, but when put on inflation, compared to other box office performances, & on it's own terms John Carter is still a major flop, & sadly lands as one of the biggest box office flops in history. This makes the second movie that involves "Mars" that Disney has done that does poorly in the box office (the other one being Mars Needs Moms [which is considered the worst box office bomb in history], a Disney animated movie that gave me zip interest to watch); seems like DIsney should just leave Mars alone. Not to mention that it will also not age well, like, not at all unless the film gets a sequel, & that's if the sequel is better than this.

Is it entertaining? Mostly, yes. But it lacks anything else, especially how rushed it was.

So overall, John Carter sucked, & from what the director has done, he hasn't made anything that I liked with the exception of Wall-E, & Monster's Inc. I find it so hard to believe that this director who made Wall-E could make this. If anything I would highly recommend that this movie get a sequel, regardless of it's box office bomb. But that sequel won't happen because apparently Stanton thinks that a movie like Finding Nemo needs & deserves a sequel over John Carter. Do Stanton or Pixar not know that none of their films other than The Incredibles deserve & need a sequel?