Over one million pre-orders have been made in the US for Microsoft’s forthcoming FPS Halo 3, due for release on September 25th.

Microsoft said it is expecting the Legendary Edition of the game to sell out on release day, reported Games Industry.

A slew of big name US brands are planning promotional activity around the titles release, with Pontiac, Burger King, Mountain Dew, 7-Eleven and Comcast all having announced campaigns.

"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."