I know it's rated PG-13, but I'm honestly unclear as to why that is.I've been reading "Princess of Mars" to my six-year-old son off-and-on for the past few weeks. Is there anything in this film that's clearly unsuitable for kids?
There's no cursing beyond maybe a "damn" or two. There's no blood (except for a scene of John Carter after he's fought a White Ape). The level of person-on-person violence is on par with the Narnia films or the Star Wars films.
That's probably a good test. If you'd let your son watch a Star Wars film (particularly Phantom Menace or Clones or The Clone Wars), you could, in my opinion, safely show him John Carter.