Terminator Salvation: The Machinima Series, a six-part Web series tied to McG's upcoming Terminator Salvation movie, is now live on iTunes, Amazon Video on Demand, Xbox Live and the Sony PlayStation Network.

Produced in association with McG and Machinima Inc., the series uses real-time computer animation generated from the Terminator Salvation video game and is set against an original story written by Andy Shapiro and directed by Tor Helmstein. Fans follow Blair Williams (voiced by Moon Bloodgood, who reprises her character from the upcoming movie) on a journey that reveals the genesis of her involvement with John Connor's resistance unit two and a half years before the events in the movie.

The cost per episode is $2.99 for HD and $1.99 for SD (where available). Fans can also sign up for a season pass and automatically receive future episodes every week for $14.99 in HD or $9.99 in SD (where available).

The series comes from Halcyon Games, a division of The Halcyon Co., along with Warner Premiere and Warner Brothers Digital Distribution.

Terminator Salvation opens in movie theaters on May 21.