Credit: Dimitrios Kambouris/Getty Images.

Last summer, Sarah Palin embraced her role on the silver screen, shaking hands with screaming fans at the Iowa premiere of the documentary about her political rise, "The Undefeated."

Her relationship with the movie industry has since soured. There was Nick Broomfield's "Sarah Palin: You Betcha!," deemed trite by both Palin's friends and foes. Now we have "Game Change," premiering Saturday night on HBO.

Last week, Palin's political action committee shot down the film version of the best-selling 2010 book, releasing a trailer that juxtaposes movie clips with clips of Palin campaigning in 2008 and full screen graphics that say such things as "Fact change" and "We know the truth." The two and a half minute long video urges viewers to go to SarahPAC.com for "game change we can believe in." (Her site features multiple links to the trailer, a handful of other videos, and a link to donate to the PAC.)

Keith Appell, who headed up publicity for "The Undefeated," called Palin's response to "Game Change" "effective" but "sad."

"Doing the video was very effective in undercutting her critics," he told ABCNews.com. "She has every right to remind everyone how laudatory these people were of her in the beginning. She should do that. The fact that she has to do that, I think, is a bit sad. But that's life."

A representative for Palin did not respond to ABCNews.com's requests for comment. Last week, she told Fox News she has no plans to see the film.

Meanwhile, Julianne Moore has been making the talk show rounds discussing how she prepped to play the former Alaska governor and vice presidential candidate. On Tuesday, she told "The Daily Show's" Jon Stewart that watching hours of TLC's "Sarah Palin's Alaska" clued her into Palin's amalgam of an accent - "She speaks most like her father, so it seems to be based on the Idaho accent, but she even takes it further than he does. So it seems to be her own particular way of speaking."