Julianne Moore plays a politician, gets political

The movie, which airs on March 10, depicts Sen. John McCain's (R-Ariz.) 2008 run for the White House and eventual loss with Palin as his running mate.

Moore might be playing a politician in the upcoming biopic, but the actress got political in real life this week as well.

The "Boogie Nights" star released a video calling on parents to combat air pollution with the group Moms Clean Air Force.

"The Clean Air Act was signed into law in 1970. It was supported by Democrats and Republicans. The law that has done so much to clean up air pollution, since I was a kid, is now under a dangerous political attack," says Moore in the video.

"Sometime being a good mom means being an active citizen. Tell Washington, listen to your mothers."