In 2019, Rory Culkin starred in "Lords of Chaos," a film about Mayhem, a real Norweigan black metal band. The role asked a lot of Culkin — both emotionally and musically.

As the actor told Hero Magazine, he had to learn to play some guitar for the role, too — prior to filming, he only played the drums. "I can play some Mayhem now but that's about it," he said. Rory added that a black metal music coach in Brooklyn helped him prep for the role, filming six days a week on an 18-day shoot with each day off spent rehearsing music.  

Playing Euronymous, the frontman of the band, also meant getting pretty dark. "The culture is dark and scary but then it's also fun," Culkin said. He explained to Cryptic Rock that after he met a few people from the scene, he was less afraid of the culture. However, he admitted that the darkness of the part took its toll: "Now that I played Euronymous, and all of these other dark roles, I probably should lighten up a little bit just for my own psyche," he said.