While filming at Big Water in Utah, the crew accidentally discovered a 60-foot-long sauropod dinosaur skeleton. The state's land management bureau took over.
The rights to the novels have since reverted back to the Edgar Rice Burroughs estate, which is still game to try to turn the books into a successful movie franchise.
Andrew Stanton has already confessed that he isn't too satisfied with how the movie turned out. He confessed that part of the problems came from a first-time live action director being "drunk with power" after receiving too much money and creative control.
For each of the super jumps that Taylor Kitsch performed, he was attached to a harness that allowed him to free-fall at a speed of 80 mph. Kitsch apparently found it unpleasant.
The film probably holds the record for the longest time in "development hell": 79 years. Preproduction first started in 1931, when Robert Clampett, director of 'Looney Tunes', approached author Edgar Rice Burroughs to make an animated feature out of the first book in the series, "A Princess of Mars." Had plans gone through, 'John Carter' could have become America's first animated feature, beating Walt Disney's Snow White and the Seven Dwarfs (1937). It finally left development hell in January 2010, when filming officially started in London.