Julianne Moore is Sarah Palin, but who will play John McCain in HBO Film'Game Change?'

Julianne Mooremay be playingSarah PalininHBO's film about the 2008 presidential election, but who will playJohn McCain?

On Tuesday it was announced that the redheaded"Boogie Nights"star would take on the role ofMama Grizzlyin HBO Films'"Game Change,"about John McCain's presidential campaign in 2008.

While directorJay Roachis keeping mum on the remainder of the cast, a number of silver-haired actors have the experience, not to mention the physical assets, to pull off playing the 75-year-old Republican.

McCain's Hollywood doppelganger,BrooklynnativeRichard Dreyfuss, is no stranger to theWhite House-- the 64-year-old actor playedSenator Bob Rumsonin 1005's"TheAmerican President."

Slightly younger but similarly distinguished, actorEd Harrisalso has a part in big screen politics, having playedE. Howard Huntin"Nixon"and a presidential candidate in"Running Mates"in 1992.

A wild card choice would beAnthony Hopkins, who may have ruined his chances by playingRichard Nixonopposite Dreyfuss in 1995.

Another possibility includes comedianSteve Martin, who has been focusing on his writing career of late, but this year returns to the big screen in"TheBig Year,"oppositeOwen Wilson.

For a slightly hipper crowd,"Mad Men"starJohn Slatterycould inject a little sterling chic into the proceedings.

(l. to r.) Steve MArtin, Anthony Hopkins and John Slattery could also play McCain. (Le Segretain/Getty; Merritt/Getty; Livingston/Getty)

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