Gamespot reports on some interesting information for Halo fans. Bungie has created a seven minute documentary about the Halo 3 Trailer run at E3 this year. The short piece allows fans to see the trailer from different angles, and provides insight into its creation. They've also released word that there have been 500 million Halo 2 games played since the game's release. From the article: "This is just the latest of several impressive accolades the game has achieved. In just its first few months in retail, the game sold 6.4 million copies worldwide and logged 91 million cumulative hours on Xbox Live. According to NPD, the game has sold more than 5.1 million copies in the US as of April 2006, accounting for almost $253 million in sales domestically."