Jack Black says Tony Abbott 'living in the stone age' on gay marriage

Jack Black (Photo / Jason Merritt / iStock)

American actor-comedian Jack Black has weighed in on Australia's marriage equality debate, saying Prime Minister Tony Abbott is "living in the stone ages."

Black was asked about Abbott's stance on gay marriage while speaking with Today FM radio hosts Dan and Maz on Thursday morning.

"I personally think the guy's living in the stone ages though if he's not seeing the writing on the wall. The movement of the world is heading towards equality for all people, all sexual preferences. C'mon, we're all the same in the end, who cares what gives you a boner."

Australia Prime Minister Tony Abbott. Photo / Getty Images

When told of Abbott's raw onion-eating stunt, Black said "yeah, he sounds like a bit of a nutter."

Black stars in the comedy TV show The Brink. Season 1 of the HBO show is set in Pakistan, with Black playing a wannabe spy opposite Tim Robbins as Secretary of State.

Throwing around story ideas for season 3, Black had some Aussie-themed suggestions: "Terrorists are trying to smuggle a nuclear warhead through a didgeridoo and you gotta stop them at customs," he said.

"Maybe there could be some evil terrorist sharks that have lasers attached to their heads," he added.