From PlayStationLifeStyle:
At this year’s London MCM Expo PlayStation LifeStyle managed to talk to Kevin Shortt, the lead script writer for Avatar: The Game about everything from the title, to the movie, to fighting cosplayers. The game is set two years before the events of James Cameron’s heavily anticipated movie, giving the game far more creative [...]

From VentureBeat:
Update: Here is the series, thanks to YouTube:

Assassin’s Creed: Lineage, created by acclaimed Hollywood special effects studio Hybride Technologies (which Ubisoft acquired last year) and Ubisoft Montreal’s Ubisoft Digital Arts (UDA), will make its global debut on Oct. 27 on the front page of YouTube in eight countries.
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Last month, Ubisoft Montreal CEO Yannis [...]