This old-school filmmaking technique is still kicking even as AI takes on a bigger role in movies

Foley artists craft everyday sound effects that occur in a scene: footsteps, squeaky doors, swishing cloaks, the slap of leather reins.

Few people are now working in the field full time as Foley artists.

The performative nature of the craft makes it difficult for studios to use AI to match the artists' skill.

Hecker and Gross work with all of Hollywood 's major studios to create Foley sound.

They typically spend 18 to 20 days per project, depending on the film's sound budget.

They've worked on "Rebel Moon " films, " Venom: The Last Dance ," and " Mufasa: The Lion King ".

Hecker noted that streaming content doesn't have the same sound budget as feature films and so the creators often turn to smaller Foley houses. In the meantime, Hecker , who has garnered the nickname " Wrecker ," is known for putting his human body on the line for Foley . "I would do anything to get a sound," he said. "If a guy's getting slammed into a door, against a car, you've got to physically put that same intensity that you see on the screen. If you don't, it just won't sound right.".