John Carter as a character set the standard for many of the comic book heroes that came later on. Due to his time on Earth in a higher gravity he is considerably stronger than the inhabitants of Mars, and able to leap tall buildings in a single bound. Critics at the time of the film's release chided it for being too much like the book, as well as too much like many of the other comic book films being released, but the entire point of the film was to present the origin story of John Carter of Mars. The film even went so far as to cast Edgar Rice Burroughs as the narrator, since the stories were written from the author's perspective about his crazy, rich uncle John.
The tone of the film was a technicolor update of a story that was more 20th century than anything else. John Carter as a film managed to coalesce a complex origin story and give an easily understood and visually stunning run to a fantasy science fiction story that is often mentioned in the same circles as Star Wars and Lord of the Rings. However, while it performed poorly in America, its international performance was stellar, raking in high ratings and large audiences. The reasons for that vary, but it's a combination of the popularity of the character and the series along with different film cultures which led these audiences to support the film in a much bigger way than domestic ticket sales would have people believe.