Once again, the Call of Duty series proves to be a valuable brand for Activision. It's estimated over 6.5 million units of Modern Warfare 3 were sold within 24 hours since its launch, bringing in more than $400 million in sales. The feat is more impressive when you consider Modern Warfare 3 was only sold in North America and the United Kingdom on its first day of sale. Modern Warfare 3 managed to significantly beat Black Ops' launch, which sold 5.6 million units in one day. Activision reports Call of Duty's life-to-date sales have exceeded worldwide box office earnings made by Star Wars and Lord of the Rings.
