Kristen Stewart's 'Twilight Saga' co-star doesn't think her fling with married director Rupert Sanders will hurt the movie franchise.

Christian Serratos, who plays Angela Weber in the movies acknowledges fans will be upset that Kristen cheated on her on and off screen lover Robert Pattinson but thinks the fans will continue to love their characters Edward Cullen and Bella Swan regardless.

Speaking about the final movie, 'The Twilight Saga: Breaking Dawn Part 2', she told Us Weekly: "Of course people are fans of us now, but I think above anything, they're fans of these characters. I don't think anyone's really gonna give a s**t. They're gonna see the movie; it's going to be awesome."

Meanwhile Kristen, 22, reportedly can't believe how badly she "f****d up" and will do everything in her power to win 26-year-old Robert back after he was devastated by her fling with Rupert, 41.

A friend of the pair said: "She's dying to save the relationship. It's the only thing she cares about. She can't believe she f****d all this up and ruined everything."