Remaking the Legend, the documentary about the making of Halo 2: Anniversary, will be free to download via Xbox Video on October 31, Microsoft has announced.

Halo developer 343 Industries said it recorded over 400 hours of footage and 80 interviews with creative partners, Halo fans, pro players, and industry experts for the documentary. It will feature interviews with Halo contributors Bonnie Ross, Frank O’Connor, Dan Ayoub, and Head of Xbox Phil Spencer, as well as members of the original Halo 2 team: writer Joseph Staten, multiplayer designer Max Hoberman, composer Marty O’Donnell, and voice actor Keith David.

“As we got deeper into the project, we realized we couldn’t talk about Halo 2’s impact on the industry without telling the story of Halo’s origins,” Director of Programming for 343 Industries Tina Summerford said on Xbox Wire. “It’s pretty awesome to hear the original team from Bungie talk about the beginning of this franchise and it’s something we think both new and old fans will appreciate.”

You can also watch Remaking the Legend on the Halo Channel on November 11, or tune in to the Xbox Twitch channel at the following times:

• Friday, October 31 at 11 am PST/2 pm EST
• Saturday, November 1 at 6 pm PST/9 pm EST
• Sunday, November 2 at 6 pm PST/9 pm EST

Much like Halo: Combat Evolved Anniversary, Halo 2: Anniversary, which is included in Halo: The Master Chief Collection, is an updated version of the original Xbox game first released in 2004. The campaign will feature a Classic Mode to instantly switch between the remastered next-gen graphics and original game, updated sound effects, and completely new cut-scenes.

The Master Chief Collection includes remastered versions of Halo 1-4, as well as beta access to 2015’s Halo 5: Guardians. It launches for Xbox One on November 11.