Black Ops 2 crosses $1 billion mark in 15 days worldwide

Black Ops 2 has crossed the $1 billion mark in worldwide retail sales, according to Chart-Track and internal company estimates.

The game achieved this milestone within 15 days of launch. Comparatively, 2011's Modern Warfare 3 reached $1 billion in retail sales in 16 days.

"The release of Call of Duty has been one of the most significant entertainment events of each of the last six years," said Bobby Kotick, CEO of Activision Blizzard. "Since Call of Duty was launched, cumulative franchise revenues from players around the world are greater than current worldwide box office receipts to date for the top-10 grossing films of 2012 combined.

"Life-to-date sales for the Call of Duty franchise have exceeded worldwide theatrical box office receipts for Harry Potter and Star Wars, the two most successful movie franchises of all time."

Compared to films, the box office record set for feature films was in 2009 by "Avatar" which hit $1 billion in 17 days.

Since the game's launch, more than 150 million hours have been logged online through PSN and XBL.

Black Ops 2 was released worldwide on November 13 for PC, PS3, and Xbox 360.