A great behind-the-scenes vid released during E3 in 2002.

It's got commentary from Marty O'Donnell, Shikai Wang, Rob McLees and Paul Russell. It shows the progression of Halo from an engine for an RTS game to the first-person shooter the game became.

Originally shown at the X03 event in France, this documentary film gives a behind-the-scenes look at Halo 2.

This is shakycam footage from the original event. Bungie's higher quality version from YouTube is here:

http://rampancy.net/node/104533

A PC Halo beta tester, Dan Chosich, made this film of gameplay using the PC version of Halo, currently in beta testing.

Commentary by Steve Abeyta and Shikai Wang

Commentary by Alex Seropian and Hamilton Chu

Commentators: Shikai Wang, Paul Russell, Rob McLees, Marty O'Donnell. This version recorded with a fan audience.