will not watch the Twilight movie if Kristen Stewart is replaced

I seriously dont think the movie will be the same if Kristen is replaced.
To me she is one of the main characters and i will not go see this movie if
Kristen is not in it. Its like being given a diet coke when you really want a regular coke, without Kristen and Robert in the movie Eclipse or any other Twilights, it will be like a" Diet Twilight" because it will not be as  sweet, I want my Twilight with all the surgar.
Petition now not to take the surgar out of Twilight! BRING KRISTEN BACK NOW! WE WANT KRISTEN.