Pre-orders for Microsoft and Bungie's Halo 3 have surpassed the one million mark in North America, GamesIndustry.biz reports.
With three different versions of the game due on September 25, Microsoft is expecting the Legendary Edition of the game to sell out on release day.
"What we've experienced is nothing short of phenomenal," said Bob McKenzie, senior vice president of merchandising at GameStop.
"Halo 3 has eclipsed many previous records and will prove to be one of the must-have items of 2007."
Some of America's biggest brands are supporting the release of the Xbox 360 exclusive, with Pontiac, Burger King, Mountain Dew, 7-Eleven and Comcast all offering various forms of cross-branding.
"This September, Halo 3 will push videogame entertainment into the forefront of mainstream culture," said Chris Di Cesare, director of creative marketing at Microsoft.
"Teaming up with some of the world's strongest and most recognisable brands is trailblazing new paths and cementing video games as big entertainment on a par with major event films, and is a testament to the excitement and anticipation intrinsically linked to Halo 3."
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