The sound effects Klausner and his crew create in “Stomach It” do the lion’s share of the work in evoking a bodily reaction both from Joel’s character and the audience, who is made to feel like a voyeur throughout the story. We cringed and gagged alongside Joel as he utilized the tools of his trade to clean up vomit, blood, and the other miscellaneous viscera left behind. Klausner is efficacious iver mais...