Microsoft says its launch of Halo 3 for Xbox 360 on Tuesday was the “biggest day in U.S. entertainment history.” Wired reports: “In its first 24 hours, Halo 3 racked up $170 million in sales in the United States. This put it ahead of the 24-hour revenues of both the Spider-Man 3 film and Harry Potter and the Deathly Hallows book release.”
