HBO's upcoming political movie Game Change has added a slew of new cast members, including Melissa Farman (Temple Grandin) portraying Sarah Palin's daughter, Bristol Palin.

The movie centers on the controversial Presidential campaign of John McCain and Sarah Palin in 2008. Ron Livingston has joined the cast as Mark Wallace, a senior campaign advisor to the McCain-Palin ticket. Larry Sullivan (CSI: Crime Scene Investigation) will play Chris Edwards, Sarah Palin's deputy chief of staff, while Jamey Sheridan (Trauma) is set to play John McCain's speechwriter/strategist, Mark Salter.

Ed Harris and Julianne Moore are already locked in to play John McCain and Sarah Palin, with Woody Harrelson playing Sarah Palin's senior campaign strategist and adviser.

Jay Roach will direct Game Change from a screenplay by Danny Strong, both of whom collaborated on the 2008 HBO political movie, Recount.