The largest game company Activision Blizzard has just announced that Infinity Ward’s Call of Duty: Modern Warfare 2 has surpassed $1 billion in retail sales worldwide since its launch in November.

The game sold an estimated $550 million worldwide in its first five days alone, outpacing five-day worldwide theatrical box office gross figures for such films as Avatar, Harry Porter and the Half-Blood Prince and The Dark Knight.

“Call of Duty: Modern Warfare 2 has exceeded our expectations and shattered theatrical box office and video game records,” said Robert Kotick, CEO of Activision Blizzard. “There are only a handful of entertainment properties that have ever reached the $1 billion mark, which illustrates the power of the Call of Duty franchise and mass appeal of this game.”