Like many heavy-metal frontmen before him, Lamb of God’s Randy Blythe made a logical jump to horror films when he starred in “The Graves,” a wicked feature directed by his comic-artist friend Brian Pulido.
The brooding, sinewy Virginian chews up the scenery as the possessed pastor Deacon Luke, alongside splatter-flick legends Bill Moseley and Tony “Candyman” Todd.
“But there’s a whole lot more that goes into acting than most people realize,” Blythe says. “Actors have to replicate time and time again the same exact movements, emotional intensity and facial expressions, because they shoot the same scene from a million angles. I never realized just how long it took to film 10 seconds of footage!”
But “The Graves” set — a mine in the Arizona desert — held a few nasty surprises for Blythe, whose band is part of the Rockstar Mayhem Festival at Shoreline Amphitheatre on Sunday.
Filming at night, he says, “I was not aware that scorpions show up under black light. So you would look down and just see scorpions everywhere, crawling all around.”
The hills definitely had eyes — and meth labs. “One night, this guy just wandered onto the set with a pistol, all tweaked out,” Blythe says. “Luckily, he left without shooting anybody.”
Yet Blythe wasn’t a desert novice. He recently underwent survivalist training with expert Cody Lundin, and the apocalyptic themes and thundering dirges he woofs with Lamb of God — anthologized on the new three-disc greatest-hits “Hourglass” — are there for a reason.
“Greed is going to destroy us all,” Blythe says. “We’re going to continue to pollute our planet and strip our natural resources until not much is left. Then, technology and the grid will go down, and there will be no money. There will be me and my guns.”
Blythe, 39, prepared for said Armageddon with a final exam in which he spent nine days in the desert with nothing.
“At first, we were allowed to have a water container and a steel knife, but slowly they were taken away from us,” he says. “So you had to make your own knife.” He survived on rattlesnakes, pack rats, grasshoppers, crawfish and cacti.
Blythe is glad he can turn Paleolithic should society suddenly collapse: “Because I’ll need to know how to live off the land while I’m hunting people to put in my stew pot — fat, apathetic, lazy Americans. I’ll need to make fire and shelter for the barbecue!”
IF YOU GO
With Korn, Rob Zombie, Lamb of God, Five Finger Death Punch, Hatebreed, Chimaira, Shadows Fall, Winds of Plague, Atreyu, 3 Inches of Blood, In This Moment, Norma Jean
When: 2:15 p.m. Sunday
Where: Shoreline Amphitheatre, One Amphitheatre Parkway, Mountain View
Tickets: $31 to $61
Contact: (800) 745-3000, www.livenation.com