Just because actress Rose McGowan (Planet Terror) is not in the Terminator Salvation movie, that doesn't mean she can't be in the Terminator Salvation game.
Playing a character exclusive to the game, McGowan is former elementary school teacher Angie Salter who must adjust to the horrors of the war against fictional computer system Skynet. The film version of Terminator Salvation, the fourth in the franchise, stars Batman Begins actor Christian Bale as John Connor. It's set in 2018 and shows the war against mankind and Skynet.
It is unconfirmed whether Bale is lending his voice to the game, which is out May 21.