Grindhouse Releasing‘s new 4K restoration of Cannibal Holocaust will have its world premiere this Sunday, October 5, at Beyond Fest at American Cinematheque at the Aero Theatre in Los Angeles.

The special edition presents the “Green Inferno” documentary footage directly from the original 16mm camera negative in its native 1.37:1 aspect ratio for the first time.

“It’s a whole new and perhaps even more powerful experience watching the movie this way, with the alternating aspect ratios,” said Grindhouse Releasing owner Bob Murawski. “This is essentially the same way we constructed Orson Welles’ long-unfinished masterpiece The Other Side of the Wind. And, of course, we have also painstakingly preserved the original theatrical version of the movie as well for our upcoming ultra-deluxe UHD release.”

The 1980 Italian exploitation shocker is directed by Ruggero Deodato and written by Gianfranco Clerici (The New York Ripper).

In the controversial film, “Deep within the heart of the Amazon, a rescue mission uncovers a chilling discovery: reels of raw footage left behind by a vanished documentary crew. Their original quest was to investigate rumors of cannibalistic tribes—but what they captured on film reveals something far more horrifying than legend.”

Robert Kerman, Carl Gabriel Yorke, Francesca Ciardi, Luca Barbareschi, and Perry Pirkanen star.

Stay tuned for details on the impending 4K UHD release. In the mean time, Grindhouse has new merch from Cannibal Holocaust, The Evil Dead, The Beyond, and more.