According to Variety Magazine's sources, who are "close to the industry," Grand Theft Auto 4's opening weekend will outstrip even Master Chief's.
Variety predicts the game will make $400 million in its the first week of release.
According to Variety:
Vidgamer sellers have slightly varying predictions at this point, though all expect it to be huge. Blockbuster CEO Jim Keyes said that "GTA IV" will likely do "two times the volume" that "Halo 3" did for his chain, while GameStop senior veep of merchandising Bob McKenzie said the game is currently tracking slightly behind Microsoft's three-quel.
Other predictions from Variety: Adam Sandler's next movie will be popular with dumb people, we haven't seen the last scandal involving Britney Spears, and the sky is, in fact, blue.
Variety: 'Grand' videogame breaks record