Credit: Portland Film Festival

Look for hordes of zombies walking — shuffling their undead feet, we presume — on the streets of Portland, Ore., on Monday, Sept. 7. While the rest of the country will be celebrating Labor Day, the Portland Film Festival will be ringing in Zombie Day Apocalypse. And what better way to celebrate than with a record-setting event.

Eager to make some history with the expected crowd of thousands in attendance, the festival has notified the Guinness Book of World Records scorekeepers, who will be on hand to count the number of extras appearing in a short zombie movie by George C. Romero, son of the legendary Night of the Living Dead director. Anyone can attend by signing up here. And check for validation of the new Guinness category, “Most Extras in a Short Film,” soon thereafter.

“Zombie Day Apocalypse perfectly captures the renegade spirit and vision of the Portland Film Festival,” says festival founder Josh Leake. “I invite all zombie lovers, cinema fans, and filmmakers from around the world to join us in creating an unforgettable zombie film experience this Labor Day.”

Award-winning makeup artists from The Hunger Games and The Maze Runner will oversee the gore effects, and events will also include a late-night zombie film graveyard screening. The Portland Film Festival, now in its fourth year and with an emphasis on independent and genre movies, starts on Sept. 1. The full movie lineup will be available next week on the festival’s official website.