cast/trailer/info:
http://www.imdb.com/title/tt0401729/
John Carter info:
http://en.wikipedia.org/wiki/John_Carter_of_Mars
A Princess of Mars book info:
http://en.wikipedia.org/wiki/A_Princess_of_Mars
This movie was rated
Rated PG-13 for intense sequences of violence and action by the MPAA (Motion Pictures Rating) and I gave the movie a 4/5 for good depictions of Dejah Thoris and Tars Tarkas and many other aspects of movie, compared with book, and for staying fairly close to book (even though it was not the same). The deduction was for depiction of John Carter (I imagined him smooth shaven), for having a Thern in the movie (when none are in the book this is based off of "A Princess of Mars") and for not being a movie I would put on my top 100.
This movie starts off with John Carter (played by Taylor Kitsch) roaming around the streets to deliver a message at the same time Edgar Rice Burroughs (his nephew, also writer of the Martian books (http://en.wikipedia.org/wiki/Barsoom) is going to John Carter's estate. But also the backstory of the villan (Tardos Mors played by Ciaran Hinds) and how he achieves his superweapon unfolds through the first few scenes as well. While Edgar Rice is going to the estate, he is reading a letter, which will play importance later in the movie, that is from John Carter and is short and almost pointless (except for later in the movie). When Edgar gets to the estate he learns that John Carter is presumed dead and that John Carter left some possesions to Edgar including a book (memoirs of John Carter's exploits to Mars; used in Barsoom books by Edgar Rice Burroughs books [
http://en.wikipedia.org/wiki/Barsoom]) and his estate, which will be Edgar's after it is used for income the first 20-30 years. Also, Edgar is told the John Carter has desired to have his coffin left with a door on the inside (find out why later in movie). After receiving all these news, Edgar is left alone in John Carter's office and starts reading John Carter's memoirs of Mars.
At this point, John Carter is played out and shows him on Earth, then going into a cave and soon after being transported unto Mars. On Earth, Carter is a virginia millitary man with a fighter/never say die attitude that gets him into a lot of trouble. But is still highly regarded as an excellent soldier and thus gets assigned a task which leds him into a cave, meets a Thern (Matai Shang played by Mark Strong) and gets transported to Mars.
Once on Mars, John Carter realzies that he has super-powers (stronger, faster and jump farther due to the lower gravity of Mars vs. Earth) and is also confronted by Tharks (first introduced to future Jeddak of Tharks, Tars Tarkas voiced by Willem Dafoe). They attempt to kill him since he is found near the nesting area of the Tharks but Tars Tarkas stops them. This is where the first reference of John Carter being called "Virginia", by the Tharks, is played from through the rest of the movie. But John Carter is soon captured by the Tharks as a slave. Once among the Tharks, John Carter behaves brashly and almost gets killed several times if it were not for Tars Tarkas intervention, which leads him to be the owner of John Carter.
But after developing the characters of the Tharks and John Carter's relation to Tars Tarkas, John Carter and Tars Tarkas soon grow to be friends, despite the Tharks Spartan-like beliefs. But soon after this occurs Helium and Zadanga (Helium is lone remaining power against Zadanga, among the red-people of Mars; Tharks are green-men), engage in a fleet war with one another where the Tharks pull back to allow the "red-men to kill each other" but John Carter comes to intervene and rescues Dejah Thoris (princess of Helium, played by Linda Collins) from the Zadnagas.
But despite these efforts John Carter and Dejah Thoris are both taken as slaves under Tars Tarkas ownership. But before these two were to be slain Sola (his biological daughter; rare among Tharks [explained in books]), John Carter and Dejah Thoris all runs away to escape slavery with Tars Tarkas help.
After escaping from the Tharks, Dejah Thoris leads them to a place Carter believes to be the Temple of Issus (discussed in movie as place where John Carter can get back to Earth from, but actually is not [learn later in movie what it actually is]; discussed in books as heaven for people of Mars but learn in 2nd book of Martian series "Gods of War" [
http://en.wikipedia.org/wiki/The_Gods_of_Mars] that it actually is not). But Dejah Thoris is actually leading them to her home of Helium, which John Carter and Sola learn quickly and cause Thoris to bring them to correct path to the temple of Issus. But while on the path Carter and his companians are suddenyl attacked and thus must resort to escape where they are lead back towards Helium.
On the way to Helium, Dejah Thoris and John Carter soon grow close to one another but Thoris is to be wed to someone else (this is due to the fact that the leader of Zadanga will use this marriage to save Helium and unite Zadanga and Helium together; Thoris is against this marriage but agrees only after her father tells her that is has already been agreed to). Upon hearing about this, he decides to try and recruit the Tharks to help save Dejah Thoris.
This attempt to recruit results in both John Carter and Tars Tarkas being thrown into a gladiator-type arena where he must fight to the death. But instead of dying, they conquer all the creatures as well as destroy the corrupt leader of the Tharks and avenge the death of Tars Tarkas wife, Sola's mother (explained in books). This arena fight leads John Carter on a frenzy to get back to Helium to stop the wedding and save Dejah Thoris and Helium from the clutches of Tardos Mors, Matai Shang and the rest of the Therns (holy men of mars; explained in "Gods of Mars" book, link pasted two paragraphs above).
John Carter and his army stop the wedding in time and an all-out war against Zadanga occurs. The irony of this scene is that the Tharks and Helium men are so accustomed to fighting each other that they almost kill each other instead of Zadanga (explained more in books).
After the battle, John Carter and Dejah Thoris get married and the nation of Helium is saved from Zadanga but the Therns still live to possibly set-up for a sequel. Also John Carter, involuntarily gets transported back to Earth by a Thern.
This then leads back to Edgar Rice in John Carter's office where Edgar learns that the therns may be tracking him (the men following John Carter in the beginning) and that they may try to destroy his grave. But Edgar finds a way to get to the grave and open the burial site to try and save John Carter's body. Once Edgar opens the burial site, through the letter he received earlier in the movie, he soon discovers that John Carter's body is not there and before he looks all the way around discovers that John Carter has knocked out a Thern that was waiting for the burial site to be opened so that they could destroy the body of John Carter.
After this event, John Carter tells Edgar the reasons behind the letter, how he faked his death and why he needed the door to be able to be opened on the inside. This leads to John Carter picking up a portable device, from the Thern, that allows him to be able to transport back to Mars through some martian verbal commands. Thus leaving the door open for a sequel based on the 2nd book of the Martian series called "Gods of Mars".