As far as movie poster critic quotes go, "grossest movie ever made" should eagerly entice a certain set of filmgoers.

Kuso, the controversial directorial debut of hip-hop producer Flying Lotus (real name Steven Ellison), reportedly sparked mass walkouts at a press screening at the Sundance Film Festival, currently being held in Park City, Utah.

According to reports from trade publication Variety, audience members began walking out after just "10 minutes of boil-bursting, pus-oozing revulsion."

In an instantly viral review, The Verge critic Chris Plante called the film "the grossest movie ever made" and detailed scenes of "a woman chewing on concrete until her teeth disintegrated", "a man having sex with a talking boil", "abortion sight-gags" (yes, that's plural), and a doctor (played by septuagenarian funk freak George Clinton) who keeps a "toddler-sized cockroach" housed in his anus.