VIDEO: Julianne Moore as Sarah Palin

Now that we've all got the idea that Sarah Palin is actually a genuine politician out of our heads, we can sit back and watch the various on-screen attempts to document her bizarre career.

We've already had her official, and awful, documentary The Undefeated and Nick Broomfield's rather less-congratulatory Sarah Palin: You Betcha! and now, HBO are throwing their hat into the ring with Game Change.

The new film takes a look at John McCain's presidential campaign and his misguided involvement with Palin. Ed Harris stars as McCain but it's Julianne Moore's well-judged impersonation of the "pitbull with lipstick" that looks set to steal the show.

You can see a tease below and the film is set to premiere in the states in March and over here soon after:

(Image: YouTube)