On August 31, 2009, The Walt Disney Company announced a deal to acquire Marvel Comics' parent corporation, Marvel Entertainment, for $4 billion or $4.2 billion, with Marvel shareholders to receive $30 and 0.745 Disney shares for each share of Marvel they own. As of 2008, Marvel and its major, longtime competitor DC Comics shared over 80% of the American comic-book market. As of September 2010, Marvel switched its bookstores distribution company from Diamond Book Distributors to Hachette Distribution Services.

What entertainment company purchased Marvel at the end of the 2000s?