Julianne Moore and Sarah Palin
Sipa; Landov
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.
If she wants to go for laughs Moore, 50, could always ask Fey for some pointers – Moore has a recurring role as Alec Baldwin's flirty past flame Nancy Donovan on Fey's NBC sitcom 30 Rock.
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