Julianne is playing Sarah in "Game Change", the upcoming HBO movie about John McCain’s 2008 presidential campaign. HBO just released a picture of Julianne as Sarah, and it's a convincing look. Here’s a gallery of “Sarah” along with some of the other actors in the movie:

Julianne Moore as Sarah Palin:

Julianne as Hillary Clinton, which is also pretty good:

Julianne was supposed to play Hillary in another HBO film. That one, "The Special Relationship", premiered last May. But she had to drop out because of production conflicts with her movie "The Kids Are All Right".

Bristol Palin next to actress Melissa Farman, who's playing her in "Game Change":

Levi Johnston, who will be played by Justin Gaston:

John McCain and the actor who's portraying him, Ed Harris: