updated 03/10/2011 AT 5:00 AM ET
•originally published 03/09/2011 AT 5:00 PM ET
Move over, Tina Fey: Julianne Moore has been cast to play former Alaskan governor Sarah Palin.
The Kids Are All Right actress will star in HBO’s upcoming movie, Game Change, based on John Heilemann and Mark Halperin’s bestseller of the same name, a rep for HBO confirms to PEOPLE.
The movie will focus on the breadth of the 2008 presidential campaign mounted by John McCain in which Palin was the candidate for vice president.
Casting has not been completed for other roles such as McCain or Barack Obama.