Edited sentence: "She doesn't know anything," Hoving said in the film, coming off, as one film critic put it, a pretentious blowhard.More recently Hoving appeared in the documentary film "Who the $&%* is Jackson Pollock", refusing to accept the claim of a 73-year-old California woman that she had possession of an authentic Jackson Pollock painting.The painting in question is shown in the film to have a fingerprint on the back of the canvas which matches a fingerprint from the American artist's studio and another from one of his recognized paintings, which hangs in London, but Hoving pooh-poohed the evidence, saying that connoisseurship stands above science