Passage: 300 was released in both conventional and IMAX theaters in the United States on March 9, 2007, and on DVD, Blu-ray Disc, and HD DVD on July 31, 2007. The film received mixed to positive reviews from critics, which included praise for its original visuals and style but criticism for its depiction of the Persians, which some characterized as bigoted or Iranophobic. Even so, the film was a box office success, grossing over $450 million, and the film's opening was the 24th-largest in box office history at the time. A sequel, titled Rise of an Empire, based on Miller's previously-unpublished graphic novel prequel Xerxes, was released on March 7, 2014.

Question: Approximately how much money did this movie earn?
over $450 million