Kuso, which stars Tim Heidecker, Hannibal Buress, Donnell Rawlings, David Firth and funk legend George Clinton, premiered at the Park City, Utah event over the weekend (21-22Jan17).
However, it seems that the film, a series of interconnecting stories about the mutated survivors of a Los Angeles earthquake, was too disgusting for many Sundance filmgoers.
In a review for The Verge website headlined 'Kuso is the grossest movie ever made', journalist Chris Plante detailed how the film's shocking scenes caused a large number of audience members to leave the screening he was in early.
"A large chunk of the audience left my screening early, when a boil-covered woman choked a man with a strap until he covered half her face with semen that looked like a muted version of Nickelodeon slime," he wrote. "But the walk-outs continued in a consistent stream up to the final scene."
Other scenes in the gross-out movie are reported to include one featuring a woman choking on concrete until her teeth disintegrate and jokes about rape and abortion.
"There's no half stepping or half kind of liking (the movie)," he said. "You either love it or you f**king hate it."
Kuso is yet to receive an official release date.