During the filming of Thunder in the winter of 1929, Chaney developed pneumonia. In late 1929 he was diagnosed with bronchial lung cancer. This was exacerbated when artificial snow, made out of cornflakes, lodged in his throat during filming and quickly created a serious infection. Despite aggressive treatment, his condition gradually worsened, and seven weeks after the release of the remake of The Unholy Three, he died of a throat hemorrhage on Tuesday, August 26, 1930, in Los Angeles, California. His funeral was held on August 28 in Glendale, California. Honorary pallbearers included Paul Bern, Hunt Stromberg, Irving Thalberg, Louis B. Mayer, Lionel Barrymore, Wallace Beery, Tod Browning, Lew Cody, and Ramon Novarro. The U.S. Marine Corps provided a chaplain and Honor Guard for his funeral. While his funeral was being conducted, all film studios and every office at MGM observed two minutes of silence in his honor.