DOWNING pints and whipping back shots was all in a day's work for Nick Frost.
The British actor's latest collaboration with buddies Simon Pegg and director Edgar Wright is the sci-fi pub crawl comedy The World's End.
Pegg plays Gary King, a man stuck in his high-school glory days, who convinces his mates to return to their small home town to have another crack at the epic pub crawl they failed to finish as 18-year-olds.
Playing 40-somethings trying to relive their youth and complete a 12-pub crawl means filming a lot of drinking scenes.
"I probably did close to 80 shots one day," Frost told APN.
But luckily for Frost water is an easy substitute for vodka and Sambuca. And it turns out there's a fine art to making authentic-looking fake beer.
"You can't drink low-alcohol lager or no-alcohol lager because if you drink 10 pints of that there's a weird placebo effect where you kind of feel a bit drunk," he said.
"The props guys worked hard to find the perfect pint. It's slightly carbonised water with burnt caramel in it. And you know those things you can buy in the store that whisk milk? One guy would be responsible just to make the foam and just spoon the foam on."
The film hasn't inspired its stars to go off on their own real-life pub crawl, no matter how badly their fans might petition them on Facebook and Twitter.
"Simon doesn't even drink," Frost said. "I am a father now. I love a nice cold pint every now and then, but my days of rabble rousing are sadly kind of behind me."
He says the key to playing a convincing drunk, paradoxically, is to not act drunk. "A lot of it comes from the slow blinking and being out of focus."
The film has several Aussie connections, including the Australian stunt co-ordinator Brad Allan who was responsible for choreographing the many fight-scenes that ensue after the men discover not everything is business as usual in picture-perfect Newton Haven.
The World's End is out in theatres now.
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